I'm not sure if my TP is charging... - TouchPad Q&A, Help & Troubleshooting

This is the second time I've had my TP hit 0% battery while in CM9 (relatively recent nightly build) and auto power off and not respond to charging or boot attemps. I can't say for sure which nightly but probably from 6-12 months ago. It's been realtively stable with no problems i could discern. Anyways. Recently, the first time it lost power down to 0% I searched for solutions to the problem. I found the solution, based on the symptoms, to be TPdebrick. I followed those directions to the letter and within a day or two my TP was back up and running after fully charging. I don't recall precisely what occured after completing TPdebrick and the TP booting up again as I had gone to sleep, then to work, had a bunch of other stuff to do after work, then sleep again before I went to check on the TP to use it.
I'm concerned that it isn't actually charging it this time, even though TPdebrick completed successfully. I have tested the USB cable and charger and they are both fuctioning and able to charge my smartphone. The wierd thing is it did charge for a short period of time right after using TPdebrick (according to the output the battery voltage was at 30xxxxx [I don't remember the numbers where I substituted xxxxx]). But not enough for it to reach minimum charge to boot. When after 24 hours on the charger it was still no responsive I thought I'd run TPdebrick again to try and jump start it again so to speak. This time around from the log is the following:
Starting battery authentication...
Battery authentication successful.
battery_info.percentage = 0, battery_info.voltage = 3225680, battery_info.current = 937, battery_info.temperature = 20
This appears to show that it did charge up a little bit from that brief time it began to charge. And that it was recieving a small amount of charge from the PC. Typically when it is charging the cylinder part that plugs into the outlet gets warm. But it isn't getting warm as expected when the TP is connnected. I've also twisted the plug part off and back on several times along with using my smartphone to test that it was able to charge each time. So I'm stuck not knowing if the TP is actually charging because I have no visual or physical indicators that I can determine if it is or not. Any help would be appreciated.

Install the attached file to your touchpad and run it with your charger plugged in. It will tell you if your battery is charging and what current it is receiving.
Just unzip the attachment and install the .apk
Peace

chris5s said:
Install the attached file to your touchpad and run it with your charger plugged in. It will tell you if your battery is charging and what current it is receiving.
Just unzip the attachment and install the .apk
Peace
Click to expand...
Click to collapse
Since I can't boot the TP how do I install that and use it to get the info? Unless there is a misunderstanding. TPdebrick fixes it so it can charge so it will boot but I don't know if it is for sure charging so that it will eventually boot or if I need to use TPdebrick again. Assuming that despite the appearance of TPdebrick having completed successfully running it somehow didn't fix something. I would assume that at this point my options are few. If software means of getting it to boot again don't work I would have to disassemble the TP to get inside and somehow charge the battery up with a crude hand made rig or something. Assuming that the failure to boot is simply lack of charge. As it was the last time this happened. And needed TPdebrick so that it would charge up in that too low state. The last resort option would be get inside it or whatever other method needed to copy the data off of the internal storage (part seen as SD card) in the state it is in. And if the storage can somehow be wiped from there sell it for parts if it ends up not repairable.

It could also be a dodgy Usb connection/board on the TP several people including myself have had this problem.

Well if tpdebrick got it up and running before can you not repeat the process to enable you to charge the tablet. Then you'd be able to install the tpcharge app and go from there ...

Does the back of the TP get warm/hot after charging? On my TP the back area near the volume buttons gets warm after being plugged in for a few hours.

sstar said:
It could also be a dodgy Usb connection/board on the TP several people including myself have had this problem.
Click to expand...
Click to collapse
chris5s said:
Well if tpdebrick got it up and running before can you not repeat the process to enable you to charge the tablet. Then you'd be able to install the tpcharge app and go from there ...
Click to expand...
Click to collapse
HKSpeed said:
Does the back of the TP get warm/hot after charging? On my TP the back area near the volume buttons gets warm after being plugged in for a few hours.
Click to expand...
Click to collapse
When charging any old day while I am using it I have noticed that area get warm. Just like the cylinder of the charger getting warm almost hot. Neither of that is happening which leads me to believe there may be something more wrong than just the simple yet not so simple problem that TPdebrick fixes. I've ran TPdebrick on it several times now twice before posting the thread and twice after. In completed it's execution with "all done" message. The port itself appears to function otherwise TPdebrick would fail before completing due to a USB connection failure. At least it seems to me it would fail as a result of that. Is there a way any of the parts can be tested for failure to figure out what has failed? Again assuming that something has gone bad internally on the TP. It has been plugged in for now 48 hours only interrupted by running TPdebrick. Of which I could run it again and get the info from the log I previously posted to see how it has changed. I have no idea what the numbers mean other than the battery percent being reported as 0.
I forgot to mention previously that it was plugged in at the time the battery went to 0%. Something I had not expected to occur. The battery icon in CM9 indicated charging with the lighting bolt icon as I had seen the icon just before it auto shutdown. Something I didn't give much thought to as that had happened one time a long time ago when I still had only webOS on it. Except webOS didn't let the battery get too low and it simply booted back up a minute or two after the charger was reconnected after it auto shutdown. So I guess if there is anything I can do to figure out why it isn't charging to know what needs to be fixed and if it is worth fixing and I'm able to fix it then I'd like to fix it. Otherwise I'll need a way to recover the data off of the storage so I can at least not have to start completely over with most of it. Nothing real important on it or anything that if lost would be detrimental just time lost in game progress and related and having to download oddball files for other apps again.

Just out of interest ... my touchpad that was not charging properly thru the usb port still managed to get thru the tpdebrick process to the "All Done" stage. However, it would only take a maximum of 100mA, even off the 2A mains charger. Changing the usb port resolved the chraging issue.
Peace
Edit: also, a touchstone - wireless - charger will eliminate a battery vs USB port fault ...

I have good news and bad news. The good news I'm able to charge my TP with a charger other than the official one. I tried my smartphone charger which is significantly lower amps. In 9 hours it has charged it 30% while it remained in the powered off state. I booted it up a few minutes ago hoping that it had charged it up. I powered it off again and will charge it to 100% before using it.
The bad news is the official chargers cylinder is shot. This is the second official one I have gone through since purchasing my TP during the fire sale. So I'm not sure what I'll do about that. I only really use it as an ebook reader right now and as an alternative to some things I use my smartphone for when I have both available to me. Considering my netbook is in need of replacing due to a failing charging port I am looking to get a windows 8 pro hybrid tablet (ex acer w700) which would effective replace both the netbook and TP. Leaving the TP as a much more of an experimentation device.

mine does not charge in android OS after installing CM 4.1.2 over old cherry kang
im getting current500mA in touchpad chargetest if connected to PC back 2.0 port, charge icon does not appear
charges if on webOS

Having the same issue as serialteg described. Just flashed to 10.2 (09/20 NIGHTLY) and TP cannot charge on CM. Switching back to WebOS, it's being charged.
Fixed. The infamous MTP issue was what I had. Solution found.

Related

[Q] touchpad wont charge/stuck!!!

hello everybody!!!
about 2 months ago i modded my buddy's touchpad for him and everything worked fine. well he brought back the tp to me and saying its stuck and it wont work for some reason. also i am not able to charge with any usb cable it keeps saying
"to reliably charge, use the cable and power adapter that came with your device."
i just want to charge this thing up and remove classic nerd ics from it and simply make it stock web OS cause its become too laggy and glitchy for some reason and i dont know why. well to be honest i havent used it much this is feed back from my buddy.
i just need to get this back to web OS in a couple of hours cause he is a truck driver and needs it on the road. please let me know thanks
naifs_br10 said:
hello everybody!!!
about 2 months ago i modded my buddy's touchpad for him and everything worked fine. well he brought back the tp to me and saying its stuck and it wont work for some reason. also i am not able to charge with any usb cable it keeps saying
"to reliably charge, use the cable and power adapter that came with your device."
i just want to charge this thing up and remove classic nerd ics from it and simply make it stock web OS cause its become too laggy and glitchy for some reason and i dont know why. well to be honest i havent used it much this is feed back from my buddy.
i just need to get this back to web OS in a couple of hours cause he is a truck driver and needs it on the road. please let me know thanks
Click to expand...
Click to collapse
In WEBOS it will only charge with an original charger just so uou know..... in Android you can charge with most anything but anything less than 2amps and 5.5 volts is just gonna trickle charge
As far as the Android install it probably just needs an update and clean boot but if you took the time to tead you would find that WEBOS DOCTOR is used to wipe android off the Touchpad
Sent from my cm_tenderloin using Tapatalk 2
So is the battery dead or are you able to turn it on? The TouchPad needs a certain amount of poswer to charge the device. Thats why the TouchPads original charger has such a big adapter. You chould probably get a slight charge with other chargers but it will take a long time to charge.
As far as android being buggy, I would suggest the same as cdzo72 and just reinstall it. And also like he said, the webOS Doctor will get rid of android. There are also apps in preware, I believe, that remove all traces of android after you uninstall it.
cdzo72 said:
In WEBOS it will only charge with an original charger just so uou know..... in Android you can charge with most anything but anything less than 2amps and 5.5 volts is just gonna trickle charge
As far as the Android install it probably just needs an update and clean boot but if you took the time to tead you would find that WEBOS DOCTOR is used to wipe android off the Touchpad
Sent from my cm_tenderloin using Tapatalk 2
Click to expand...
Click to collapse
jsgraphicart said:
So is the battery dead or are you able to turn it on? The TouchPad needs a certain amount of poswer to charge the device. Thats why the TouchPads original charger has such a big adapter. You chould probably get a slight charge with other chargers but it will take a long time to charge.
As far as android being buggy, I would suggest the same as cdzo72 and just reinstall it. And also like he said, the webOS Doctor will get rid of android. There are also apps in preware, I believe, that remove all traces of android after you uninstall it.
Click to expand...
Click to collapse
the battery is dead and it wont turn on im trying with orignal hp touchpad charger but there is no power...what to do next ? like its completely black there is no power at all not even a battery sign of charging or anything like that
I'm having the same problem as stated. My battery completely drained. When tried pluggin in it gave me the message "plug in original charger" which I have except for the cable. On the home button I had no chargin light. After a couple of hours I tried turning it on pressing power+home and I got the red battery, then immediately the plug in symbol, then the "plug original charger" message.
Then I decided to plug it to my laptop. The home charging light finally came on stating that it was charging. It's been a couple of hours and I was able to plug it back to the original charger on the wall and the home light continues to show that it is charging. Unfortunately, I've tried to turn it on and I still get the message. I'm going to let it sit for a while to see if it's just not charging fast enough to even power up. I am running CM9. Not planning on going back to WebOS anytime soon. If I get it working, I will let you know.
Oh, if you have the original wall adapter, you can unscrew the actual plug off the adapter by turning it counter clockwise. Then screw it back on. Supposedly that will fix something with the actual wall plug. I don't know if that's what caused mine to actually work again.
If you regularly charge it with a Touchstone charging stand, take it off, and plug it in through the outlet and the cable that came with it, and be sure to try charging in WebOS instead of Android.

Dead Screen or Nearly Dead Battery Issues

Okay, first thing to mention is that I have searched for information on my issue and while I have found (and tried) solutions that approach my goof, I need to post this:
Last night I finished reading from Kindle app, hit the power button to shut off the screen and laid it down. I know I should have plugged it to recharge but too late now. I am running CM nightly from 07172012, so I know I didn't download the nightly CM battery issue versions.
This morning the screen will not light up; I have tried charging it, hard reset with power and home screen buttons for 15-20 seconds (and longer), and nothing works. My concern is that the screen is dead. I connected the touchpad to my laptop and I get the connection sound from the laptop; it sees the TP but does not accept it as a portable storage device. Device Manager lists it as: QHSUSB_DLOAD with driver(s) not loaded.
When I try the volume rocker button I do not hear the small audible ping as volume goes up or down. Of course, with the resets, who knows where I am in the OS (or even if it is WebOS or Android).
I really didn't want to be a noob and post this, but I need some advice from the brethren here on XDA. Thanks in advance.
It seems to me that it's not even booting if your getting that strange device in device manager. Try the webos recovery tool from hp. It may help. Although it will wipe android off.
Sent from my SGH-I777 using xda app-developers app
my son-in-law is in the same boat. Nothing he does wakes it up. I believe there are tp's out there with this hardware issue. I let my tp battery drain completely. It powers down around 4% battery. I place it on the touchstone, it charges backup and boots into moboot, then webos. I've done this twice. no problems. If it's under warranty still, send it in.
If you have a touchstone charger put it on that and leave it for a couple of hours and it Will come back to life.
See this article by Reverend Kyle http://www.reverendkyle.com/index.php/articles/146-hp-touchpad-charging-issues-solution
I hope this helps.
I've had multiple instances of black screen of death failure.
The latest one I had, I was able to restore by using a standard USB to micro USB cable (and recently NOT the HP OEM cable) to connect to the computer I usually use to sync or use HP web doctor with.
Same symtpom as the OP, get the three dings when connecting the touchpad to the computer, no responses and the QHUSB driver load error. HP charger wouldn't chage it, touchstone would not charge it.
Anyhow, I left it connected for a few hours to charge connected to my PC. Then, I disconnected from the PC using the large USB connector and reconnected. Whamo, got to the bootloader.
I believe what happened was I trickle charged the touchpad enough to get the touchpad to boot.
You can try the various hard boot keypresses too, but wait for a few hours while trying to trickle charge the touchpad via the computer USB.
Update
Okay, so I followed the old rule of doing the simple (and/or free) solutions first and then move on.
1) I set the touchpad on the touchstone for several hours yesterday - no luck
2) I connected the touchpad to my pc through the USB and let it charge - no luck
3) I let it be plugged into the standard charging plug all night - no luck
4) I prayed to the great old god Cthulhu - no luck
My only option remaining is to use WebOS Doctor. One question on that: in all the literature I have read thus far (and perhaps I am mistaken), I need to be able to get the TP into USB mode to download the corrections/reboot back into WebOS. Is that right or can I expect that when the doctor sees the mangled mess of an OS through the USB connection, it will know what to do?
Again, as always that for the previous posts and for the support.
mnachazel said:
Okay, so I followed the old rule of doing the simple (and/or free) solutions first and then move on.
1) I set the touchpad on the touchstone for several hours yesterday - no luck
2) I connected the touchpad to my pc through the USB and let it charge - no luck
3) I let it be plugged into the standard charging plug all night - no luck
4) I prayed to the great old god Cthulhu - no luck
My only option remaining is to use WebOS Doctor. One question on that: in all the literature I have read thus far (and perhaps I am mistaken), I need to be able to get the TP into USB mode to download the corrections/reboot back into WebOS. Is that right or can I expect that when the doctor sees the mangled mess of an OS through the USB connection, it will know what to do?
Again, as always that for the previous posts and for the support.
Click to expand...
Click to collapse
Another piece of black magic that worked for me and is worth a try as it is free. Connect Touchpad to standard HP brick charger plugged into power outlet. Unplug cable from charger, count to 5, plug it back in, count to 5, take it back out. Repeat the cycle until you get bored or until you get a red charging symbol. If you get the latter then let it charge up normally and you are back in business. The theory behind this method is that it takes a few seconds on plugging in for the circuits to realise they "shouldn't be charging" and this allows a little bit of charging to take place on each insertion. Repeat enough times and you get enough to kick start the proper charging. In my case about 20 times did the trick.
As I didn't want to get into this situation again I then set up a Tasker process to power down th eTouchpad if the battey charge dropped below 8% and I've been OK since.
RIP Touchpad / EOT
Well, I had to wait a day to get my hands on a WinXP laptop; I upgraded my Dell to Win8 about 3 months ago and WebOS Doctor does not play well with Win8.
While that time passed, the touchpad finally gave up the ghost. There is no power left in the TP. When I run WebOS Doc the laptop cannot see the TP connecting via USB. I also checked by connecting the TB to the Dell, since it would at least see the device. Not any more.
My thanks again to those that responded. I did try the plug in, plug out with 5 second waits between, just in case. You never know. However, after 50+ attempts I had to call it a no-go.
does your home button light come on at all? Are you able to see moboot bootloader at all or are you able to start the tablet in webos recovery mode by holding the vol key while powering it on? are you able to ./adb connect? Also I've never had much luck with the resest method youre using, holding down the power and home key, I always hold down the power key and press the home key 15 times, when I get hard freezes and lockups, it's always worked.
Mine is in the same boat for a couple of months, removed battery and charged. Boot loader is borked I get only get a qualcomm usb device but nothing thats of any use for webos doctor or qualcomm tools. We'll have to wait until someone figures out jtag or how to replace the bootloader with qualcomm tools. I'm amazed with the number of touchpads out there that something hasn't leaked from hp to fix it. Anyone got friend in hp or qualcomm :angel:
OP Update
Well, I thought this was a dead issue but here is the latest.
After wallowing it a pit of despair the likes of which can only be described as wretched, (I even coveted my wife's TP up close, almost giving into temptation and swapping decals to reverse ownership) I looked outside of XDA and did general Google searches and happened upon this site:
http://forums.webosnation.com/hp-touchpad/299256-dead-touchpad.html
After reading a bit I realized that the touchstone may be able to recharge the dead battery even though fully drained. I began the quest that Friday morning the 24th of August, after verifying that my Dell laptop did not see the TP when plugged in via the USB cable.
I just did a quick check and the laptop now "sees" the TP when connected. Still no luck on booting into Moboot or the USB icon screen - neither Power and Volume Up or Power and Home buttons achieve anything. But I am glad to see that the touchstone has placed enough charge into the battery that the laptop is aware of the TP when connected.
I believe that given a few more days on the touchstone I should be able to boot into moboot.
@ haxin - I have nothing. Not a single light from the Home button - my only evidence that there is SOMETHING going on is when I connect the TP to the laptop and get my connection "sound". Again, I have high hopes that the touchstone will get me where I am going, albeit at a snails pace.
@ paddy - Yeah, I hope that when (if) I get to a lit screen, I am able to move past where you are at. My big concern is that I am toast even with a semi charged or fully charged battery from the touchstone.
I will update later on. Again, thanks to all for the input and probing questions. You have made me think harder and work a bit longer on this project.
OP Update - 31 August
After 7 days on the touchstone, the touchpad is currently showing the low battery charge icon; I have now plugged it into the A/C adapter.
Each morning I have picked up the TP, held down the power button and held the home button for 15+ seconds. Today it worked, turning on the screen for the first time in a week and letting me see the low battery image.
In my quest to resolve this issue, I have read so many variations on what buttons to hold and how long to hold them that after awhile you end up considering the possibility that SOME of the button options are not correct. That the operator has booted their TP up, but they misconstrued the actual solution; how else can you explain the idea that HP built so many different button combinations and hold times to boot a TP from a nearly or fully dead battery state?
Anyway, I will continue to post updates until my beloved TP is back to running CM9.
And to all those who gave their TP up because the battery got too low; find a touchstone or other "trickle" charger solution, connect and let it sit for a week or so.
Thanks!
Glad the Touchstone worked for you , don't know why it has taken so long to charge but when your up an running properly Llama is a good app to install as
A:You can set alarms for when the battery gets to a certain level/levels
B:Have it shut down when the battery gets to a certain level.
I use 20% for an alarm and 10% to shut down which allows me to sleep easy and not worry if someone else is using it . .
I am up and running. I most definitely will load that app on my TP, plus my wife's and a coworker who bought a TP because of mine.
I don't know either why it took so long; I am just glad it worked and I have it back. I am on it right now.
Thanks again to all who provided feedback and guidance. This is why I love XDA.
Sent from my HP Touchpad using xda app-developers app
HP Touchpad sleeping and will not turn on
Just a note to those HP tablet owners who experience the Black screen of death or sleep of death.
I am the proud owner of 4 HP tablets and two of them so far have had the black screen of death. I have read forum after forum trying to get answers to this problem. There was only one posting that has made cense to me. Someone posted that the tablets symptoms are very much like when the Phones use to go to sleep. The solution was to disconnect the battery for a few minutes then plug it back in. Then simply hit the hold the power button down to turn on the tablet.
The problem is taking the TP apart. There is a video on youtube on how to disassemble the tp. It is a little annoying that you have to go to such lengths to reset the hardware but HP will charge you 250 dollars to fix the problem. After you watch the video on how to open the TP, remove the 3 little screws holding the battery. Now slowly pry the battery up, they use double sided tape to hold it in place along with the screws. Wiggle the battery side to side and try to disconnect the battery connector. This can be done without removing the boards in the TP. Wait 1 min then try to replace the connector in the socket. It is on the underside of a board so when you have it in place use something to make sure it is tight. Plug the charger in to the USB cable. Without closing up the unit hold the tablet power button in until you get the battery charging symbol on the display. Let the unit charge while it is still disassembled. Just in case you have a problem. Once everything is operating disconnect to charger and replace the battery screws, now snap everything together.
This was the only way I was able to fix two of my four TP's. I am sure I will have to do this again because my kids always let the tablets go dead and they don't pay attention when placing them on the Stone for charging. If the tablet is not properly placed on the stone the tablet will not charge.
Hope this helps.
This by far is the best tablet for the money anywhere.
msousa1 said:
Just a note to those HP tablet owners who experience the Black screen of death or sleep of death.
The solution was to disconnect the battery for a few minutes then plug it back in. Then simply hit the hold the power button down to turn on the tablet.
The problem is taking the TP apart. There is a video on youtube on how to disassemble the tp. It is a little annoying that you have to go to such lengths to reset the hardware but HP will charge you 250 dollars to fix the problem. After you watch the video on how to open the TP, remove the 3 little screws holding the battery. Now slowly pry the battery up, they use double sided tape to hold it in place along with the screws. Wiggle the battery side to side and try to disconnect the battery connector.
Click to expand...
Click to collapse
I realise this is an old thread, but I recently had a reoccurrence of the black screen of death issue and thought given the number of touchpads still out in the wild, I would share my experience on the off-chance it may help somebody.
My first experience of the black screen issue was a few months after having my touchpad (many years ago). The screen just went black and no combination of holding the reset keys for any period of time would restart the unit. I had suffered lock-ups before and found the reset combination to be successful, but this time none of that worked and I had effectively what appeared to be a dead unit.
Having contacted HP, I returned the unit under warranty and a unit was returned working. I say “a unit” as I was never quite sure if it was the same unit or a refurbed unit, but to be honest given the speed the units went out of stock during the fire sale, I was just glad to have a working unit again.
Well this week after several years of use including the installation of Android, the black screen occurred again. As before, no combination of the keys / holding for a period of time / pressing them a number of times etc had any effect. The unit was three quarters charged and I was using it up till the point the screen went black. :crying:
Given that the unit has no warranty and it was “dead” anyway, I decided to take it apart. Despite watching YouTube videos, this appeared to be more troublesome than I thought, but eventually I was in. Interestingly, the backlight on the screen was still lit, suggesting the unit was still powered. I did consider disconnecting the battery, having removed the screws as per the previous poster, but mine seemed to be well and truly stuck down and I felt I may damage it prying it away from the base.
However, looking around inside the unit, I spotted what was clearly a surface mounted switch that faced upwards towards the back of the screen. Out of interest, I pressed on this switch with my finger nail and my unit powered off (shown by the backlight turning off). I then pressed the normal power switch and the unit powered up as normal. I have attached a photo of the switch which resides close to the popout tab with serial numbers on that can be found on the right hand side of the unit.
It does appear strange that HP put this “reset” button inside the unit, facing inwards rather than outwards where a small hole in the back of the case could be used to press it. So if you do get to the opening the case stage, consider this as an alternative to prying the battery loose. Also if somebody can work out a way to make the button accessible from outside the case it might be a useful modification.
JoeG90 said:
<.......................................>
However, looking around inside the unit, I spotted what was clearly a surface mounted switch that faced upwards towards the back of the screen. Out of interest, I pressed on this switch with my finger nail and my unit powered off (shown by the backlight turning off). I then pressed the normal power switch and the unit powered up as normal. I have attached a photo of the switch which resides close to the popout tab with serial numbers on that can be found on the right hand side of the unit.
It does appear strange that HP put this “reset” button inside the unit, facing inwards rather than outwards where a small hole in the back of the case could be used to press it. So if you do get to the opening the case stage, consider this as an alternative to prying the battery loose. Also if somebody can work out a way to make the button accessible from outside the case it might be a useful modification.
Click to expand...
Click to collapse
Oh I was so keen when I came across this post. A Reset Button! How great would that be?
Tried it, unfortunately it did not resurrect my dead as a doorstop TP. I was so hoping...
I just put a 'new' EBay battery in it a couple of days ago and tried trickle charging with a 1000mA charger for 24hrs. No joy there either.
All I get when I plug it into the PC is that it shows up as a "QDLoader 9008" (QHSUB_DLOAD driver) .
No flicker of life or light whats so ever...
_mr
middle_road said:
Oh I was so keen when I came across this post. A Reset Button! How great would that be?
Tried it, unfortunately it did not resurrect my dead as a doorstop TP. I was so hoping...
I just put a 'new' EBay battery in it a couple of days ago and tried trickle charging with a 1000mA charger for 24hrs. No joy there either.
All I get when I plug it into the PC is that it shows up as a "QDLoader 9008" (QHSUB_DLOAD driver) .
No flicker of life or light whats so ever...
_mr
Click to expand...
Click to collapse
Try to borrow a Touchstone conductive charger if you can. It's the only thing that has worked for me when it has totally drained down.
All the best.
sstar said:
Try to borrow a Touchstone conductive charger if you can. It's the only thing that has worked for me when it has totally drained down.
All the best.
Click to expand...
Click to collapse
That's what I was thinking - no joy there either... It is not even showing signs of getting the least bit warm.
I keep thinking and hoping that there is some way to resurrect this one but I may be wrong...
It's currently trickling on a 1000mA charger. Tomorrow I'm going to try the Touchstone behind it.
If that doesn't start something then I'm going to yank the new battery and along with the old battery charge them like an RC device.
(if I can ascertain the proper way to do that --- )
_mr
After several days on the trickle, still no life.
Took it apart at lunch and with the battery still connected to mobo it is showing 3.1V across the red/black. So I figure the battery
is good. Looks like the mobo is gone.
Not sure what else to try.
_mr

[Q] HP Touchpad Not Charging.

Hello guys,
I'm new here at the HP Touchpad Section and XDA-Dev Forums.
I am running CM7 on our HP Touchpad and my little brother has been fiddling with it(downloading many apps from the playstore using my personal account, thus forcing me to create a new google account/other shiz).
Then one time, the screen kept turning on and off without us even touching it. Our guess was it was dust on the screen which is being register as touch.
After a week or so that that was happening, the touchpad ran out of battery and was not charged right away.
The result, it won't charge anymore.
Is there anyway to open the device and shock the battery? It may be a dead battery just like what happened to my sister's iPhone.
I've also been reading some charging issues with CM7 and CM9 and tried some of their troubleshooting methods but non worked.
If I just get a little juice to boot it, I would reboot back to webOS as fast as I can and uninstall CM7.
Thanks in advance,
Raphael
SCPadgeebar said:
Hello guys,
I'm new here at the HP Touchpad Section and XDA-Dev Forums.
I am running CM7 on our HP Touchpad and my little brother has been fiddling with it(downloading many apps from the playstore using my personal account, thus forcing me to create a new google account/other shiz).
Then one time, the screen kept turning on and off without us even touching it. Our guess was it was dust on the screen which is being register as touch.
After a week or so that that was happening, the touchpad ran out of battery and was not charged right away.
The result, it won't charge anymore.
Is there anyway to open the device and shock the battery? It may be a dead battery just like what happened to my sister's iPhone.
I've also been reading some charging issues with CM7 and CM9 and tried some of their troubleshooting methods but non worked.
If I just get a little juice to boot it, I would reboot back to webOS as fast as I can and uninstall CM7.
Thanks in advance,
Raphael
Click to expand...
Click to collapse
Try leaving it on the stock charger for several hours, maybe days. If you have a touchstone, try that.
If you get it to charge (make sure it's fully charged), uninstall CM7 using acmeuninstaller, then boot into webos. If you have preware installed fine, if not install it and download 'remove android' (or something like that). Run it, then install either CM9 or cm10, using acmeinstaller3. There are several good how-to's which you can search for here or at webos nation forum.
When you have it installed, go to settings > storage and click on the 3 little squares on the upper right hand side, and click on usb computer connection. Then make sure the MTP box is checked.
Hope this helps. Good luck.
chicle_11 said:
Try leaving it on the stock charger for several hours, maybe days. If you have a touchstone, try that.
If you get it to charge (make sure it's fully charged), uninstall CM7 using acmeuninstaller, then boot into webos. If you have preware installed fine, if not install it and download 'remove android' (or something like that). Run it, then install either CM9 or cm10, using acmeinstaller3. There are several good how-to's which you can search for here or at webos nation forum.
When you have it installed, go to settings > storage and click on the 3 little squares on the upper right hand side, and click on usb computer connection. Then make sure the MTP box is checked.
Hope this helps. Good luck.
Click to expand...
Click to collapse
Thans for the reply chicle_11! Will try that on the weekends since I am very busy with school works. And thanks for the suggestion of installing CM9/CM10 but I will just stick to webOS and get an authentic Android Tablet(I'm choosing between Google Nexus 10 or Samsung Note 10.1).
I use webos at least 50% of the time. It's a shame that there aren't more apps compared to android. You don't have anything to lose by installing android. You'll have an excellent and unique dual boot tablet. CM10 is very stable now, I use it as my daily driver, I highly recommend it.
chicle_11 said:
I use webos at least 50% of the time. It's a shame that there aren't more apps compared to android. You don't have anything to lose by installing android. You'll have an excellent and unique dual boot tablet. CM10 is very stable now, I use it as my daily driver, I highly recommend it.
Click to expand...
Click to collapse
I still might reconsider flashing CM9/CM10 when I sort out the charging problems since I am just starting to save money for the Note 10.1/Nexus10.
Can you recommend a good CM10-based ROM for the HPTP or just the stock CM10 Jcsullins?
I use/recommend jcsullins' cm10.
Make sure MTP is checked (follow my first post) and that should take care of the charging problems.
Also, try to not let the battery run out of power. It could possibly brick the tablet.
It seems that I have somewhat sorted out the charging problems. I read an article last night that Samsung Chargers also work for the HPTP.
The process is fairly simple. Use the Samsung Charger first to charge a phone. After 2 hours or so, use that charger for the HPTP to charge the touchpad from a used/electrified wire. During the other process, use the HPTP Charger for the phone to power the cord up. After 10mins or so, switch both chargers. So the HPTP should be using the one that came with it by this time.
It worked for a while then the "Please use the charging cable that came blah blah blah to fully charge..." message came. I've read another article that the touchpad should be a little elevated or at least level with the cord so the cord will not fall down that is causing the message to pop up.
I've used both methods and the 2nd method is working like a charm. It shows a battery sign with a lightning bolt and the charging warning/message does not pop up. Will leave it overnight to see if it charges.
Then after, I might reinstall CM9(I've been from CM9 but downgraded to CM7 because of camera issues w/c my lil bro does not like).
So I left it overnight and it charged when I used the 2nd Method. Happy Days!
SCPadgeebar said:
During the other process, use the HPTP Charger for the phone to the cord up. After 10mins or so, switch both chargers. So the HPTP should be using the one that came with it by this time.
Click to expand...
Click to collapse
What?
*fixed*
Sorry, That was late night here in the PHL and was a bit sleepy when I was posting that.
Also have dead touchpad
I haven't been able to see any life from my touchpad after the battery completely drained. Its been 2 days since I haven't been able to use it.
I've tried charging it via the cable and adapter that came with it for a couple of hours, left my TP on the touchstone all afternoon to morning and no life either, the touchpad however is a bit warm at the back. Does that indicate its charging?
my TP is sitting on the touchstone now but I've replaced the AC adapter and currently using my HTC Sensation plug, I am running out of ideas and I'm going to presume its completely dead.........
I've tried connecting it to the pc but nothing happens, Can someone help me out, I've also tried the button combinations "Home, Home+Power and Home+Power+VolumeUp"
I tried both of the methods mentioned a couple of posts ago with no success.
I have also left it on the regular AC charger for 48+ hours and a Samsung cell phone charger for another 48+ hours and nothing.
It is sitting on the Touchstone now for 36+ hours and nothing yet.
I sent HP an email and here is what they said to try:
"We gather from your mail that your Touchpad is unresponsive and will not turn on. To be able to help you with this issue please take note of the following troubleshooting steps:
First of all leave the device on charge with charger for 48 hours after do the following:
Press and hold the power button + Center for 15 seconds. The device may take a few minutes to restart.
Please do the above with the device connected to the charger. (not charging dock nor PC).
Press and hold the power button + volume Up + Center and continue holding for 5 seconds after the Full Erase screen appears.
Also please try the above steps with another USB cable, also please try to connect the USB to the computer with the touchpad, if the computer doesn't recognize the device, the USB cable is faulty.
Please try your charger on another device to see if this charges the device. As the issue could be that the AC adaptor that is not working.
Have you tried another charger with the Touchpad? In order to verify where is the problem. Regarding to your problem ,do you know if the problem is with the charger itself or with the USB cable? Have you tried the complete charger with another Device, phone?
If the steps given do not help you with this issue, please send us a Proof of Purchase (scan of store`s receipt attached to your response) to validate your warranty or the order creation date of your device and your address.
If you need further assistance, please reply to this message and we will be happy to assist you further.
For information on keeping your webOS and Palm products up and running, please visit our website at: http://www.hpwebOS.com
Sincerely,
HP webOS SUPPORT"
None of that worked either. I just get the "Palm device" balloon on Windows XP when I hold the Power+Volume Up + Center button. It looks for drivers but never finds them.
Also try holding Home + Power button for 30 seconds instead of 15...This has been known to force some life back for some
Con500 said:
Also try holding Home + Power button for 30 seconds instead of 15...This has been known to force some life back for some
Click to expand...
Click to collapse
Nothing after trying that and leaving it on the Touchstone for 48+ hours. Time to leave it plugged up to the computer for 48+ hours and see what happens.
Nothing after 48+ with the factory USB cable connected to a desktop computer.
It would be nice to see a solution that works every time instead of a bunch of guesses.
abomb78 said:
Nothing after 48+ with the factory USB cable connected to a desktop computer.
It would be nice to see a solution that works every time instead of a bunch of guesses.
Click to expand...
Click to collapse
First my observations on three 32 GB TP's:
My discharge rate on WebOS in Airplane mode was arround -613 to -850mA. Screen on, (brightness affects this).
3. My discharge rate on CM10 in Airplane mode is about -520mA!!
4. A PC's USB port puts out 500mA's!!!
5. On the touchstone, (doesn't seem to matter if WiFi is on or off), with screen on 1/3 brightness + Battery Monito Widget = +853 to 945mA
6. On HP charger & cable, same as above = +1,377mA
What suprised me was the greater drain in WebOS.
You PC's USB port may be causing further discharge to the 2% TP's auto shut-off!
Actually none of these goofy button pressing and charging methods was right. A6 was faulty. It is fixed now.
My TouchPad is dead
abomb78 said:
Actually none of these goofy button pressing and charging methods was right. A6 was faulty. It is fixed now.
Click to expand...
Click to collapse
My TouchPad discharged overnight and now just has a black screen. None of the button pressing or charging suggestions described in these forums has worked for me. I was just running webOS 3.0.5. No version of Android was on the TouchPad.
Please tell me the trick you used to revive your dead TouchPad. Was it just a problem with your Andriod OS?
Much thanks.
bluechip64 said:
My TouchPad discharged overnight and now just has a black screen. None of the button pressing or charging suggestions described in these forums has worked for me. I was just running webOS 3.0.5. No version of Android was on the TouchPad.
Please tell me the trick you used to revive your dead TouchPad. Was it just a problem with your Andriod OS?
Much thanks.
Click to expand...
Click to collapse
http://rootzwiki.com/topic/36658-tpdebrick-v01/page__st__300

Completely dead battery

I know that it has been said that "if your touchpad completely dies, you must have the OEM charger to start it back up". At first this seems true. . .However! I would like to report that twice now, when it was completely dead and displaying the "plug in the original charger for reliable charging or die because im a juice nazi", I was able after about 4 hours of just leaving it alone plugged into a 1amp phone charger, to get it to charge up and boot. This may have already been discovered but I couldn't find mention of it. Just wanted to give hope to someone that might have given up on this.
einstein910 said:
I know that it has been said that "if your touchpad completely dies, you must have the OEM charger to start it back up". At first this seems true. . .However! I would like to report that twice now, when it was completely dead and displaying the "plug in the original charger for reliable charging or die because im a juice nazi", I was able after about 4 hours of just leaving it alone plugged into a 1amp phone charger, to get it to charge up and boot. This may have already been discovered but I couldn't find mention of it. Just wanted to give hope to someone that might have given up on this.
Click to expand...
Click to collapse
So when you connect 1 amp phone charger, does the TP says to connect the original charger? Even if it says to connect the original charger, and leaving it for 4 hours the TP charged is that right???
My problem is when I connect to cell phone charger, it says to connect original charger.
When I connect original charger, the TP stays at 0% even after connecting the charger overnight. I dont know what is the problem? is it charger, is it battery or is it TP..
atrix4nag said:
So when you connect 1 amp phone charger, does the TP says to connect the original charger? Even if it says to connect the original charger, and leaving it for 4 hours the TP charged is that right???
Click to expand...
Click to collapse
Yes.
atrix4nag said:
My problem is when I connect to cell phone charger, it says to connect original charger.
When I connect original charger, the TP stays at 0% even after connecting the charger overnight. I dont know what is the problem? is it charger, is it battery or is it TP..
Click to expand...
Click to collapse
The message will be displayed but it is gradually charging in the background. When it gets enough juice, it will start up and charge faster. In your case it sounds like either your port or battery are damaged somehow. Possibly the charging circuitry but that is unlikely. If you don't have an original charger or touchstone, then your options are limited. They aren't very expensive on ebay though. I would let it charge on a good 1 amp charger for a few days and see what happens then. Mine did the "soft brick" crap once where it was completely unresponsive and ran completely dead and i just charged it for 4 days and forgot about it and when i remembered it, it had powered on and booted. TPs are funny devices. Expect anything and report it if you don't mind. Maybe we can get this sorted out.
einstein910 said:
Yes.
The message will be displayed but it is gradually charging in the background. When it gets enough juice, it will start up and charge faster. In your case it sounds like either your port or battery are damaged somehow. Possibly the charging circuitry but that is unlikely. If you don't have an original charger or touchstone, then your options are limited. They aren't very expensive on ebay though. I would let it charge on a good 1 amp charger for a few days and see what happens then. Mine did the "soft brick" crap once where it was completely unresponsive and ran completely dead and i just charged it for 4 days and forgot about it and when i remembered it, it had powered on and booted. TPs are funny devices. Expect anything and report it if you don't mind. Maybe we can get this sorted out.
Click to expand...
Click to collapse
Thanks for prompt response..
I have original wall charger, and got a new cable from ebay. So I am hoping its equivalent to original charger. How can I debug if the port or battery is damaged.. any idea?
I left it on charge overnight yesterday. It was at 0, in the morning.. I left it on charge today before coming to office. i am expecting it to be at 0, when I go home.. When its connected to charger, its working normally (with 0 battery), but as soon as i remove from charger, it will shutdown..
Morning, when I was charging,
the battery monitor widget app showing Battery flow as "-600mA". I think this should be +ve while charging. the same app was showing status as "Charging AC plugged". I will try to charge my phone with the same cable and charger, if the phone shows +ve current flow, then, its deffinetly should be problem with the battery or touchpad right..
I wil test it in the evening.. and if its problem with battery or touchpad.. i will try to clean the TP and will try again.. Lets see how it goes
Ok so you have the original charger, great! And it boots into android/webos correct? It sounds like your A6 firmware might have crapped out or whatever it does to cause battery issues. Probably not bad battery if this happened rather suddenly, and its not a bad port if its booting and running while plugged, even if its not charging. . .so go here:
http://forum.xda-developers.com/showthread.php?t=2756314
and read it carefully! With this tool, you can do some really cool stuff including re-flashing the A6 battery monitor/control chip. It can (but might not) fix issues like this. Give it a try with a good cable and let me know what happens. Good luck!
einstein910 said:
Ok so you have the original charger, great! And it boots into android/webos correct? It sounds like your A6 firmware might have crapped out or whatever it does to cause battery issues. Probably not bad battery if this happened rather suddenly, and its not a bad port if its booting and running while plugged, even if its not charging. . .so go here:
http://forum.xda-developers.com/showthread.php?t=2756314
and read it carefully! With this tool, you can do some really cool stuff including re-flashing the A6 battery monitor/control chip. It can (but might not) fix issues like this. Give it a try with a good cable and let me know what happens. Good luck!
Click to expand...
Click to collapse
I rebooted to webOS, and TP charged normally.. now i updated to CM11, all good as of now.. Thanks for helping me..
only bad part is i disassembled, before booting to webOS
Aw dude....well hey it happens to the best of us lol. Now u know a lot more about ur tablet and i would still recommend reflashing the A6 and removing webos if u dont use it. Tptoolbox can also be "installed" by renaming the boot image .bin file to uImage.TPtoolbox and placing it in /boot on your android partition. This allows moboot to see it. Off topic i know but i thought you might be interested. Best of luck with the re-assembly!
einstein910 said:
Aw dude....well hey it happens to the best of us lol. Now u know a lot more about ur tablet and i would still recommend reflashing the A6 and removing webos if u dont use it. Tptoolbox can also be "installed" by renaming the boot image .bin file to uImage.TPtoolbox and placing it in /boot on your android partition. This allows moboot to see it. Off topic i know but i thought you might be interested. Best of luck with the re-assembly!
Click to expand...
Click to collapse
You can only install TPToolbox as described if you have removed WebOS.
shumash said:
You can only install TPToolbox as described if you have removed WebOS.
Click to expand...
Click to collapse
why is that?
einstein910 said:
why is that?
Click to expand...
Click to collapse
Because there's not enough room for both, and it's designed to run in the WebOS userspace. Don't even try it; I speak from experience.
einstein910 said:
why is that?
Click to expand...
Click to collapse
Because the boot folder is not big enough with the webOS uImage.
Fixed my Touchpad!
I had the same issue and just wanted to report what worked for me. My touchpad wasn't responding to any button pressing combos and even after sitting on the charger for two days, didn't want to turn on. After some google searching I found my Touchpad might be so dead that the charging circuity might not want to charge the battery and all the fixes were telling me to take apart the Touchpad and charge the battery directly. That's not something I really wanted to do. Then another person suggested to charge the Touchpad with a lower amp charger, so I plugged the Touchpad into an iPhone charger for about an hour. I came back, held the power button and home button - nothing. Tried power, volume up, and home - nothing. But then I held the power button and hit the home button ~10 times and then... the home button started blinking left and right. YES! I took the Touchpad and put it on the original charger, 15 minutes later it had the Low Battery Screen and another 15 minutes later, Cyanogenmod was booting.
I need help. When I try to transfer the Android files to the HP TouchPad using TPtoolbox, Windows says that there is an F drive that I have to format before I use it. In the tutorials, a drive labeled HP TOUCHPAD or something like that shows in Windows, and you can put the Android files inside of the ttinstall folder. Should I format the drive and if so, what format?
Oh sorry, I posted to the wrong thread.

Can't unbrick 32gb wifi touchpad

I'm stuck!
My touchpad was bumped off the wireless charger one night and the battery appeared to have died, and its never showed any lights, display, or signs of life since then. Tried multiple chargers and cables. I even replaced the battery which cost as much as another touchpad, disapppointingly no change, UGH
I found tpdebrick v005 and some instructions. Ran it on ubuntu 16, and got this error: https://imgur.com/a/D9AkT1c
I grabbed the typescript logs if those are useful to anyone ;-;
https://drive.google.com/file/d/1n9EvzIe3oPZaJDaIlDoropskC7Iq1IHn/view?usp=sharing
WOW
I was reading through this thread https://forum.xda-developers.com/showthread.php?t=2126307&page=14
I noticed @jaycee147 saying something about seeing the same error I have and using heat to get past it......IT WORKED!!!
I ran tpdebrick with the autoreset option, then kept applying 30 seconds of heat from my hair dryer, then retrying whenever any step failed. Each new attempt gave new behavior until it magically started booting itself!
When I shut it down to fully reattach the display and seal it up, it refused to power on and show any signs of life again....
Repeating the same process of heating and tpdebrick brought it back again.
I will leave it on the charger until it's full and for the sake of science try to reboot it again and post my results
it rebooted and survived
it was able to shut down for a few seconds, and power back on
but powering it off one last time and back on again its acting like its totally dead again. back at it again with the hairdryer and if I get it working again I assume I'll NEVER be able to let it shut off again?
Nillanic said:
it rebooted and survived
it was able to shut down for a few seconds, and power back on
but powering it off one last time and back on again its acting like its totally dead again. back at it again with the hairdryer and if I get it working again I assume I'll NEVER be able to let it shut off again?
Click to expand...
Click to collapse
Ambient temperature ( room temperature ) is very important when charging any Lithium ion battery. ( Warmer charges best than cold )
It is extremely important to never let the battery drain to zero capacity as it can go dormant and difficult to wake up.
The battery needs to be on charger for a full day, if the battery does not hold the charge check the " true capacity remaining"
I am way ahead of ya!
When I first got the tablet to boot up after reviving it, I let the battery charge to 100% for a few hours on the original touchpad charger
Once I shut it down and tried turning it back on, it refused.
Not sure what the battery charge has to do with this anymore? When I tore apart my old battery, the cells were still at 3.7 volts, so something else must have occured
Nillanic said:
I am way ahead of ya!
When I first got the tablet to boot up after reviving it, I let the battery charge to 100% for a few hours on the original touchpad charger
Once I shut it down and tried turning it back on, it refused.
Not sure what the battery charge has to do with this anymore? When I tore apart my old battery, the cells were still at 3.7 volts, so something else must have occured
Click to expand...
Click to collapse
The only way to really know the ( TRUE ) capacity of the battery is by doing the following:
open a command prompt or terminal on a PC with the novacom driver and enter:
novacom -t open tty://
then
battery status
To know all the details of the battery you can read this thread:
https://forum.xda-developers.com/showpost.php?p=80993173&postcount=17
The battery can be 100% charge but at what capacity?
I keep getting "unable to find device" after getting novacom to work : (
I searched these threads and can't find any solutions for this situation with novacom, supposedly there's supposed to be some sort of life from the tablet (buttons or display lighting up) for novacom to work?
I'm on ubuntu 12 32-bit using the same 32bit novacom drivers
Nillanic said:
I keep getting "unable to find device" after getting novacom to work : (
I searched these threads and can't find any solutions for this situation with novacom, supposedly there's supposed to be some sort of life from the tablet (buttons or display lighting up) for novacom to work?
I'm on ubuntu 12 32-bit using the same 32bit novacom drivers
Click to expand...
Click to collapse
For the novacom connection to work the Tablet needs to display the ( big white USB symbol )
select webOS Recovery from the moboot 0.3.8 menu.
When the USB symbol is shown then connect the tablet to PC using usb cable.
If the tablet is running low in memory, place the tablet on the wireless charger and use the usb cable to connect to PC at same time.
On this thread you can find a linux OS with the nocacom driver install, it can be boot from any PC or also be use in a virtual machine.
https://forum.xda-developers.com/hp-touchpad/general/hp-touchpad-novacom-repair-android-t3960435
To automatically get into recovery mode with the tablet off.
Press and hold at the same time:
Power and volume down key ( closer to power )
The Tablet will boot into Recovery mode.
HP_TOUCHPAD said:
For the novacom connection to work the Tablet needs to display the ( big white USB symbol )
select webOS Recovery from the moboot 0.3.8 menu.
When the USB symbol is shown then connect the tablet to PC using usb cable.
If the tablet is running low in memory, place the tablet on the wireless charger and use the usb cable to connect to PC at same time.
On this thread you can find a linux OS with the nocacom driver install, it can be boot from any PC or also be use in a virtual machine.
https://forum.xda-developers.com/hp-touchpad/general/hp-touchpad-novacom-repair-android-t3960435
Click to expand...
Click to collapse
I greatly appreciate you trying to help, but I've mentioned a few times now that I have no such signs of life on the tablet, so I don't know how this helps at all : /
Thanks
Nillanic said:
I greatly appreciate you trying to help, but I've mentioned a few times now that I have no such signs of life on the tablet, so I don't know how this helps at all : /
Thanks
Click to expand...
Click to collapse
Very contradicting information, on your #6 post the tablet did boot. You also tried heating the tablet with an air dryer and that made it to charge and also boot. If the Tablet did boot, then is not brick.
I will help, but can only provide proper guidance if the correct information is provided.
Correct! As I said in post #6, I heated the tablet up and I was able to get tpdebrick to run and the tablet booted up as if nothing wrong happened.
I charged the battery to 100%, then tested a reboot, which it survived.
I then tested a shutdown and power on, and it survived.
I finally tried shutting it down one last time, and at this point it refused to power on again, no show of any LEDs or display with any charger or cable.
I'm not contradicting, what I'm saying is after I got it to boot with heat and tpdebrick, I shut the tablet down, and now it's refusing to do anything again (no leds, no display with any charger)
I hope that clears it up
Nillanic said:
Correct! As I said in post #6, I heated the tablet up and I was able to get tpdebrick to run and the tablet booted up as if nothing wrong happened.
I charged the battery to 100%, then tested a reboot, which it survived.
The battery can show 100% charged, but the most important is the capacity.
If the capacity is very low, it will loose charge very quickly and go dormant.
I then tested a shutdown and power on, and it survived.
Then the Tablet is not brick, all components are working. It seems the issue is a battery with very low capacity.
I finally tried shutting it down one last time, and at this point it refused to power on again, no show of any LEDs or display with any charger or cable.
Was the Tablet connected to a charger or place on the wireless charger all the time while on and off?
I'm not contradicting, what I'm saying is after I got it to boot with heat and tpdebrick, I shut the tablet down, and now it's refusing to do anything again (no leds, no display with any charger)
Battery is depleted.
I hope that clears it up
Click to expand...
Click to collapse
Try to revived it as before, only with some heat. I do not know your ambient temperature, is better if is over 80F to take some charge. It will take longer or not work in cold.
Boot tablet while place on the wireless charger at all time, do not removed it from the charger.
Hmmmm...
When I had it charging, it started at 15%, and after a few hours it went to 100% . I see what you're saying re. capacity, wish I had checked that while it was working.
I did not have it on a charger when I tested my reboots / shutdowns : ( I had too much faith in the battery's charge and being able to bring it back if I goofed.
I've been trying to heat it up for a few hours this morning and run tpdebrick and I still get the fuse error, but it progresses, writes stuff, and aborts when waiting too long for fastboot.
I guess I'll keep trying the heat with tpdebrick while having it also on the wireless charger until it works
Nillanic said:
Hmmmm...
When I had it charging, it started at 15%, and after a few hours it went to 100% . I see what you're saying re. capacity, wish I had checked that while it was working.
It takes more than a couple of hours to charge at full capacity. It all depends on the capacity available or the battery health. If is less, it will take less time to charge.
I did not have it on a charger when I tested my reboots / shutdowns : ( I had too much faith in the battery's charge and being able to bring it back if I goofed.
The battery capacity must be very low, that is why it turned off after a couple of reboots or until the battery got empty.
I've been trying to heat it up for a few hours this morning and run tpdebrick and I still get the fuse error, but it progresses, writes stuff, and aborts when waiting too long for fastboot.
If the Tablet already rebooted, is not brick. It needs to be charge.
I guess I'll keep trying the heat with tpdebrick while having it also on the wireless charger until it works
Click to expand...
Click to collapse
Read this link very carefully, this is the real TRUTH of the tpdebrick process.
https://webos-internals.org/wiki/Last_Resort_Emergency_BootLoader_Recovery
If bootie on the flash disk has been damaged or corrupted in such a way that booting into recovery mode is not possible, the Pre is still not "bricked" as the OMAP3430 processor in the Pre provides for a mechanism to boot code from its USB interface.
The HP Touchpad uses the same OMAP3430 processor as the Pre and the same process to re-flash the bootie ( BIOS what is call on PC ) can be perform.
That is the process that tpdebrick is doing, reflashing the bootie.
Your tablet already booted, the bootie works.
I'm sorry, you're confusing me more.
How is it possible that when I put it on the OEM charger for a few hours and waited until it "reported" 100% that it still didn't have enough capacity to survive two shut-downs within a minute? The tablet wasn't off a charger for more than a few minutes total before it died.
The battery is brand new and still measures 3.7v at the cell. I have a hard time believing this is still the battery being a problem, but you certainly have more experience.
Are you saying I should follow the instructions on the link to recover, instead of tpdebrick?
Or are you saying my tablet is "working" right now and my battery is still too low? If this is the case shouldn't it show that it's charging? Shouldn't tpdebrick NOT fail at the fuse blown step in this case?
Thank you
Nillanic said:
I'm sorry, you're confusing me more.
I will try to explain it in a very generic and simple way.
How is it possible that when I put it on the OEM charger for a few hours and waited until it "reported" 100% that it still didn't have enough capacity to survive two shut-downs within a minute? The tablet wasn't off a charger for more than a few minutes total before it died.
Capacity or (battery health) = The amount of electricity it can be store in the active cells. (good cells ), dead cells or inactive does not store electricity.
The system reports 100% charge, but does not report the capacity. The only way to know is by entering the command using the novacom as mentioned before.
If the capacity is only 10% of active cells, it will show charge 100%, but it will lose charge very quickly.
This applies to all battery's.
The battery is brand new and still measures 3.7v at the cell. I have a hard time believing this is still the battery being a problem, but you certainly have more experience.
A battery can be new, but if stored improperly for many years can go bad.
The only way to know the battery health ( Capacity ) is by getting the reading of the A6 controller.
Are you saying I should follow the instructions on the link to recover, instead of tpdebrick?
The link I provided explains technically the reason a WebOS device may not boot.
And provides on how to re-flash the bootie and that is what the tpdebrick does.
tpdebrick is use to reflash the bootie to make the tablet to boot. It has nothing to do with the battery.
If a battery does not have enough electricity to power the internal components, the tablet can not boot.
If the bootie is damage, then it will not boot even if it has a brand new battery and full charge, then the tpdebrick needs to be done.
Or are you saying my tablet is "working" right now and my battery is still too low? If this is the case shouldn't it show that it's charging? Shouldn't tpdebrick NOT fail at the fuse blown step in this case?
Your tablet already booted, it shows all components were working, is not brick, by the way the tablet is un-brickable.
The tablet should show the LED light moving from side to side when connected to a charger. If not then try to warm it up and to intermittent charging, ON for 1 minute, OFF for 10 seconds. It can be done with the wireless charger. Place it on for one minute then remove it for 10 seconds. Do it many times, from time to time until it shows the LED light, then a low battery comes up and finally it will boot. Never remove it from the wireless charger.
Thank you
Click to expand...
Click to collapse
You are welcome, hopefully it resuscitates again !
Ok that all makes sense : )
I've been trying the intermittent charging w/ the wireless and heating it for the past hour and a half-ish, it's still not shown any signs of life. Should I keep going?
Oh, I have a kill-a-watt that tells me the power draw of anything plugged into it
Using the oem hp barrel charger, and the wireless pad, when plugging just the barrel into the socket, 0 amps. Plugging the wireless pad in, still 0 amps. Place touchpad on wireless charger, I see about 0.01-0.02 amps being drawn. The power draw never changes or fluctuates no matter how long it sits on the wireless pad
I don't see any amps pulled when trying to charge via microusb
Nillanic said:
Oh, I have a kill-a-watt that tells me the power draw of anything plugged into it
Using the oem hp barrel charger, and the wireless pad, when plugging just the barrel into the socket, 0 amps. Plugging the wireless pad in, still 0 amps. Place touchpad on wireless charger, I see about 0.01-0.02 amps being drawn. The power draw never changes or fluctuates no matter how long it sits on the wireless pad
I don't see any amps pulled when trying to charge via microusb
Click to expand...
Click to collapse
The wireless charger works better on charging a dead battery than the usb connection.
Make sure the ambient room temperature is over 80 F, or you can cover it while is been charge. You do this when you are home and supervising.
It can take time for the light to start blinking, some times like a week. Leave it on the charger and sometimes just pick it up and place it again, just when you are checking on it.
Leave it there for a couple of days.

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