Hey Guys,
So I've been using CM7 since Nightly 13 or so. Around that time I was using both my stock charger and other micro usb cables I had. I would plug the non-stock into a non-stock wall plug usb outlet thing or to the computer and I had no trouble charging the nook. This is great for being at work.
Then, somewhere around nightly 22 or so this stopped working. The icon in the status bar on the nook shows charging, spare parts reports "Charging USB" and "Charging AC" respectively, but the battery level only goes down.
To make matters worse, around nightly 22 I found that after I had used the non-stock charger even the stock stopped working. I was not getting ANY charge. I read somewhere that I could use CWM to clear the battery stats so I did and that appears to correct the problem. I'm able to use the stock again.
So here I am, running CM7 rc4 but I see that I'm still not able to charge from non-stock.
Does anybody know what gives here or can you point me towards more information?
Thanks
yeah, I seem to be having the same problem
My nook was out of juice this morning so I brought a usb cable with me to work
it's been plugged in for over an hour and it still won't even turn on..
mine charges fine with the cabble that came with my evo into my laptop
This sounds important enough to repost in the Developer forum, no?
actually, I think it is charging
it's just charging REALLY slowly
mine's finally booted up now
Well I understand it always has charged much slower without the standard Nook charger, so maybe this is just an isolated case for the OP?
If I don't turn off the screen and use 1100 mhz + performance governor and have live wallpaper running, it won't charge. I think it's because it's using more power than my USB can supply.
If I have it on interactive 300/1100, with the screen off, it will charge overnight.
I don't think its and isolated event, I have the same problem but with the original nook charger its all out of juice its been connected to the wall jack for 1 hour and its not even trying to turn on.
It's a very pretty paperweight telling me that I should try again in 15 minutes for the past hour.
Yours won't charge with the original charger? What kind of light are you getting on the charger cable? Have you tried turning the machine completely off?
chisleu said:
If I don't turn off the screen and use 1100 mhz + performance governor and have live wallpaper running, it won't charge. I think it's because it's using more power than my USB can supply.
If I have it on interactive 300/1100, with the screen off, it will charge overnight.
Click to expand...
Click to collapse
Yeah, after waiting the day it appears this is the case. I have to leave the screen off and it will charge. If I actually use it I think I'm consuming more power than trickles in. That's really lame.
I've had the screen off for the last 5 hours (using it occasionally) and it is now at 50% battery, up from 8%. So I guess it is charging... just REALLY slowly.
What, if anything, can be done about this? Is this a purely hardware issue or is there a software aspect to this. I'm telling you, I didn't have this issue with nightly 13 (or so).
You know, I had been using the "ondemand" governor but have changed over to the "interactive". I wonder if that has anything to do with it. I'm going to switch it back and see if it makes a difference.
Someone please correct me if I'm wrong but I believe the nook only charges with the nook charger.
When I plug CM7 into the PC the battery percentage will jump to 100% after some (brief) time. Since I know it's too short of a time to fully charge the battery I rebooted the Nook Color and it showed the proper battery percentage.
As an aside, you're not supposed to let lithium ion batteries fully discharge. It's bad for the battery.
No I understand that it does charge via regular USB, just more slowly. The Nook cable is specially designed to add additional pins for higher voltage charging. Or something like that.
I have this plugged into a standard Motorola microUSB wall charger and it works fine for my Nook Color.
The only thing is that it charges at a much lower amperage.
You can verify this with a quick dmesg piped to grep in a terminal:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
With the standard Nook Color Charger, it charges at a rate of 2A.
It works fine at 500 mA; it just takes a lot longer.
Does anyone know if charging this way might cause damage over time to the Nook?
Logically, if it were harmful they wouldn't allow you to use a USB cable to connect to a powered USB port on a PC. (Or they'd disable charging upon such a connection.)
I mean, some people are going to leave the things connected to their PC for long periods.
xdabr said:
Logically, if it were harmful they wouldn't allow you to use a USB cable to connect to a powered USB port on a PC. (Or they'd disable charging upon such a connection.)
I mean, some people are going to leave the things connected to their PC for long periods.
Click to expand...
Click to collapse
Well... for the record, the stock nook complains when you use the non-stock charger. And it doesn't report charging.
It definitely charges using CM7, but it is super slow AND using the nook while charged seems to break even on battery consumption. If I shut the screen off though it definitely puts power into the battery.
You can see all this by using SpareParts. It shows battery info on demand and you'll actually be able to see the voltage in the battery and watch it charge. Percentage be damned I'm looking at voltage
So... I think my original question is answered. Yes, it will charge off USB or non-stock charger using a non-stock cord. It charges slowly and with a low amount of voltage meaning I can't really use the thing if I expect it to charge.
Maybe I just need to man up and buy another stock charger. :/
Paul22000 said:
It works fine at 500 mA; it just takes a lot longer.
Does anyone know if charging this way might cause damage over time to the Nook?
Click to expand...
Click to collapse
Quite the opposite. For Li-Ion batteries, a slower "trickle" charge is actually recommended over the "quick" version via higher amps.
3rd party chargers aside, are you saying with stock Nook Eclair it doesn't "report" any charging when attached with a standard USB cables to a PC -- and does it in fact NOT charge at all that way? 'Cause that would be a signifier to me that it's not intended and is potentially unsafe.
I thought I had read that it does eventually charge, just as it does in CM7....
Mine will charge with the non-oem chargers, but it takes forever. I try not to let mine completely die because it's such a pain to get it powered on again. I get the notice on screen that says something about "continue charging and try again in 15 minutes" and it takes much longer than that. Last time it died all I had was a non-oem charger at my parents' place and I had to leave it plugged in over night and when I woke up it was back on but STILL not 100%. It's a pain when you're in a hurry, but if you're in a bind and that's all you have but have time to leave it, it will eventually power back on. At least that's my experience with the nook running cm7.
Definitely seems software/driver issue. For me, the Nookie Froyo SD build had great battery time, and would slow-charge from a normal USB cable plugged into laptop. I know this because 1. It would charge, and 2. If it was fast-charging as normal, and pulling too many milliamps from the laptop, it would have informed me the USB port draw was too great, and disabled it. I have a Y USB power splitter for external hard drive - I should test if it changes anything if I use it (I'll assume it won't as it wouldn't have the custom pins).
Now that I'm messing with CM7 (sd) builds, battery drain is horrible, so I often get that "15 minutes" screen and I've had cases where it won't charge from a regular USB cable. Haven't done a lot of testing with these much, as I didn't want to have to leave it plugged in constantly.
Related
Hello Group
My Kaiser has stopped charging via a wall charger. I woke up this morning, and the battery had not charged at all
Some notes
-This problem occurs with 2 different chargers from 2 different outlets
-The device does show the charging indicators (lights and icons) even though it isn't charging
-The device does charge on PC USB port
-The device does charge on the car charger
-No visual bending of the USB pin
I've searched forums, and although I can find references to the opposite issue (wall power OK, USB power or car power NG), I can't seem to find any reference to what I'm seeing. My apologies to the group if I've missed any previous thread regarding this.
Thanks to all who help.
hello, strange problem. have you powered off the phone, pull out battery and try again, see if that might help
lupe
overhaulengines said:
hello, strange problem. have you powered off the phone, pull out battery and try again, see if that might help
lupe
Click to expand...
Click to collapse
Yup, and I have removed and re-inserted the battery.
I thought this also might have to do with a battery going bad, but from what I understand a wall charger gives more power than a usb port, so, again, if that were the case I'd think the opposite would be true
And I did find the thread on some Kaisers are eating up a lot of idle current, but after standby BatteryStatus/HomeScreen PlusPlus says just 1 ma
It sounds like your wall charger has gone bad. It may provide enough current to light up the charge LED, but it certainly doesn't have enough power to charge the battery. Try another wall charger- they all work the same way. I have a number of USB-mini devices and they all interchange for charging.
lsica said:
My Kaiser has stopped charging via a wall charger. I woke up this morning, and the battery had not charged at all
Some notes
-This problem occurs with 2 different chargers from 2 different outlets
-The device does show the charging indicators (lights and icons) even though it isn't charging
-The device does charge on PC USB port
-The device does charge on the car charger
-No visual bending of the USB pin
Click to expand...
Click to collapse
For what it's worth, you are NOT alone! The EXACT same thing has been happening to me on and off now for the past several months. At first, I thought it was the wall charger (I have 3 iGo chargers); however, ALL 3 of them failed to charge. I can understand one them failing, but ALL 3? No way. In my case, the car charger wasn't working either (it's also from iGo).
I ended up having to charge by USB. I eventually thought it was a battery problem, so I bought a new battery.
That worked...until the problem re-appeared again. The bottom line for me right now is that every now and then the wall charging does not work. So it will work fine for some time and then it will not, and then it starts to work again, etc. This erratic behavior happens with both batteries.
The duration of the wall charging working/not working is not fixed, I have found. For example, I have gone a couple of months of it charging fine and then it stops. At other times, it has been as short as a day. In any case, I usually find out about the problem in the morning, when I still see the amber charging light.
I'm convinced it's a Tilt problem.
I've loaded HomeScreenPlus to monitor current draw, and have seen the following:
-One wall charger is showing positive current (negative draw) SOMETIMES, and during those times it does charge the phone. This unit also makes the charge light turn off and on when I jiggle the plugs or cable. Obviously this charger is just broken.
-Another charger does not turn off/on the charge light or current draw when the wire is jiggled, but also never shows a positive current on the phone. This is an IGo charger, and based on previous posts here I'm thinking they just don't supply enough current to charge the phone. in other words, they suck
Any one have recomendations for a replacement wall charger for my Tilt?
i had the same issue with my htc tytn. no charger worked well for more than 5 minutes, until i got an official htc charger from my wifes shadow... now i use it because it works... and she uses the 3rd party one that came with my hermes when i bought it used... it charges her smart phone just fine, i assume beause it requires less juice? I dont know, but get a official htc branded charger... black berries have the same issue after they start getting a little old... probably something to due with wear and tear on resistors of some sort?
Found a charger that works
http://www.radioshack.com/product/index.jsp?productId=2935909
although I expect any ac to usb power adapter that supplies enough current will do. You just need to use your Kaiser/Tilt usb sync cable with it
I got exactly same problem for my Moto Q.
Tried several charger that worked before. Now, none of them works.
Here is the solution.
From www dot heberts dot net/motorola-q-wasnt-charging-via-usb
Start → Settings → Connections → USB to PC. I make “Enable advanced network functionality” on and off, and it works.
szniwawa said:
Tried several charger that worked before. Now, none of them works.
Click to expand...
Click to collapse
My Kaiser
- Charges via AC
- Charges via Doc
- Does not Charge vis USB
- Does not charge via Car Charger
But if I use an "audio Adaptor" which has usbMini Input it will charge whatever i plug in!!
Weird as hell.
Regards
Mo
I bought one of these from fleebay and it works a treat with ANY charger I plug into it.
HTC Multifunction Audio Cable YC A300
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Regards
Mo
I got a Tab yesterday without any cables. There was a little amout of battery left so i Rooted it and bought the "Euro Tap Bootstrab", i tried it, boot CWM, took a backup and then i turn it off. No battery left.
I got a USB cable today. Plugged it in my pc and tab, but I honestly cant see if charging or not. Sometime comes a large battery icon, but when pressing button it goes black
Cant hard reset.
Please help
Prozel said:
I got a Tab yesterday without any cables. There was a little amout of battery left so i Rooted it and bought the "Euro Tap Bootstrab", i tried it, boot CWM, took a backup and then i turn it off. No battery left.
I got a USB cable today. Plugged it in my pc and tab, but I honestly cant see if charging or not. Sometime comes a large battery icon, but when pressing button it goes black
Cant hard reset.
Please help
Click to expand...
Click to collapse
A PC will charge it very slowly. You need to plug it into a wall charger. You probably didn't brick it. See if you can get a USB wall charger from somewhere. Usually Blackberry chargers have a USB port that you can plug the cable into.
Using my HTC usb charger, thanks! So I just have to wait now?
Prozel said:
Using my HTC usb charger, thanks! So I just have to wait now?
Click to expand...
Click to collapse
Yeah, pretty much. I don't think backing up your Tab would have bricked it, even if the battery died mid-backup since you're reading from memory (internal), not modifying it.
Ehm, to be precise, I pressed "Reboot System", a samsung logo popped out, I waited a long time and it didnt change so i turned it off. Dont hope it's bricked
Just what!? I've charged it for about an hour and have litterly tried everything, this suck big time! It just wont start
Prozel said:
Using my HTC usb charger, thanks! So I just have to wait now?
Click to expand...
Click to collapse
I've charged it for about an hour
Click to expand...
Click to collapse
Just plugging it in HTC charger gives you almost nothing! Original Samsung charger has a "trick" inside - it has pins 2 and 3 of its USB output connector shortened, and on top of that it has also 2 resistors between these pins and +5 and GND pins. When you plug the cable in common charger the tab does not "understand" that now it must take full power from the charger and does not charge the battery actually (it should take appr 1 A current from the original charger for 4 hours to be fully charged). You should get an original charger, or get a special adapter connected between your HTC charger and tab's cable (I have seen some at Amazon.de), or to make an adapter yourself.
PS. There is a strong recommendation: never do any programing, flashing, backup or restore with battery discharged below 80%, better to do it with charger connected.
Thanks, good to know, however the orginal is lost.. so can i still use the HTC but it will take longer or?
Prozel said:
Thanks, good to know, however the orginal is lost.. so can i still use the HTC but it will take longer or?
Click to expand...
Click to collapse
I am afraid the tab will "think" that there is no charger at all. Connecting it to USB port of PC may give a result after several hours (very-very slow charging). Why don't you think over getting (or making) an adapter?!
Will defo get one, but then I would have wait till monday
Don't think i can make one
Prozel said:
Don't think i can make one
Click to expand...
Click to collapse
Actually I have made this adapter in 20 minutes (but I am formerly an electronic engineer, though).
Well, then try to connect it to PC for the whole night (do not forget to keep PC running ), maybe it works out...
First try to run it, if it hangs, try CWM/restore, if it is bricked - re-flash it.
Good luck!
Thanks alot, really! Will report back tomorrow. Again tanks
Just to be clear, when it's charged, does the battery icon have to be there all the time? It does disappear after some while when it's connected
Battery icon disappears in several seconds when the tab is switched off. Short pressing on power on button shows it again for some while. Moving dots under icon show charging in progress.
When the tab is fully charged it makes a short sound.
When the tab "understands" that it is connected to a charger, it also makes a short sound.
PS. After recovering the unit I recommend to install Battery Watch from the Market - it has a widget and you will always know the state of battery etc. And you can see a graph showing a battery behavior. And this application is on top of that shouting - "Charging started!", "Charging complete!", which is funny...
Guess mine doesn't charge?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sorry for delay - no, it does not charge... the reason was explained.
Yeah i see now. Thanks for taking you time. Defo appreciated
Just for reference, do NOT turn your GTab on while charging from a pc. It won't charge at all. Keep it turned off, and then wait for like 9 hours (it takes about 50 minutes to increase the charge to 10% from my laptop).
And when you flash, always have a full charge. ;-)
Sent from my GT-P1000 using Tapatalk
Hehe, yeah I just couldn't wait
Gonna pick up a HDMI dock tomorrow, until I've connected it to a laptop to see if it will charge.
So i got a proper charger, but does it charge?
Ok, I'm really sweating bullets here...
I had installed Cyanogenmod ICS alpha2 on my TouchPad and had spent all day on that tablet - loving the new lease on life it had. Before I went to sleep last evening it had like 10% power left. I plugged it in with the official Touchpad charger and left it charging until I woke up the next morning - a full 8 hours later.
To my surprise, it had 0 power left. Nada. Zip. I had checked the outlet and it was fully plugged in at both the tablet and the outlet to the wall. I knew I had turned off the tablet.
Now that it has 0% power - how in the heck am I supposed to boot into Palm mode to charge the battery (as I have heard that that is a work-around)?
I could really use your help here - many thanks.
@kstagg
Not sure if its the same problem...but I noticed recently that whenever i let my tp go down below 10%...and i hook up the charger...it doesnt charge at all...even with charger hooked up..battery drains....So when its 0% and I boot into WebOS to charge to fully....
For your issue, if your TP is dead...do you see battery sign when hooked to wall charger? if you do then wait for some time (mine takes 15-20 mins)...it will boot up..if your android is default then it will boot into android....without removing it from the charger...boot it into webos and charge...
If you cant do this..get it fixed by HP
What does it do when you plug it in?
First take the power adapter and twist off the bottom part and put it back on. When you connect it, do you get the battery "charging" symbol?
What I do is let it charge enough to hit moboot, then if I catch it in time I choose webOS and let it charge a little then reboot to CM, unplug the charger for a few seconds, then reconnect it. If it boots direct to CM the first time (moboot default) it's going to stay 'charging' but doesn't change from 0%. In that case, reboot and either go to webOS or reboot into CM9 a few times till it shows 1%... then disconnect the charger a few seconds and reconnect.
No matter what level the battery is at, if you boot into CM with the charger connected it will not charge. You have to unplug it for a few seconds and then reconnect it.
When I am hooked to wall charger, I see the battery symbol with the red line on it showing that battery is extremely low - in my case battery is dead. It won't even boot up when I take it off the charger. I just get the power cord symbol.
I have even been able to turn off the touchpad completely (since the TP has been on 0% power) by holding in volume up and power buttons simultaneously. I have no idea how I knew to do this - perhaps it was desperation. So I have even attempted to charge it via the wall outlet and waited a couple hours that way - but no change. It still has squat power.
Everything I've read is that once you've rooted the touchpad to a different OS, HP will no longer support it. Not sure where I would go to get it fixed by them either? Please correct me if I'm wrong. Hopefully it won't come to that though. Besides, the Mrs would kill me. :]
mountaindewmi said:
What does it do when you plug it in?
First take the power adapter and twist off the bottom part and put it back on. When you connect it, do you get the battery "charging" symbol?
What I do is let it charge enough to hit moboot, then if I catch it in time I choose webOS and let it charge a little then reboot to CM, unplug the charger for a few seconds, then reconnect it. If it boots direct to CM the first time (moboot default) it's going to stay 'charging' but doesn't change from 0%. In that case, reboot and either go to webOS or reboot into CM9 a few times till it shows 1%... then disconnect the charger a few seconds and reconnect.
No matter what level the battery is at, if you boot into CM with the charger connected it will not charge. You have to unplug it for a few seconds and then reconnect it.
Click to expand...
Click to collapse
Just tried twisting off the bottom of the HP charger and reattaching and am just getting the power plug icon.
I installed CM7 in my friends TP back when that was the current release and about a month ago it went dead, wouldn't power up at all (no battery icon) and they still took it and repaired it with no problems.
In your case though I think you are fine... just leave it charging in that screen for a while. Then do a home/menu + power button reboot (15+ seconds) and see if you can get moboot. It may go back to the charging screen but thats fine, give it more time and try again. A few of my coworkers have the same problem sometimes and they come running to me, lol.
mountaindewmi said:
I installed CM7 in my friends TP back when that was the current release and about a month ago it went dead, wouldn't power up at all (no battery icon) and they still took it and repaired it with no problems.
In your case though I think you are fine... just leave it charging in that screen for a while. Then do a home/menu + power button reboot (15+ seconds) and see if you can get moboot. It may go back to the charging screen but thats fine, give it more time and try again. A few of my coworkers have the same problem sometimes and they come running to me, lol.
Click to expand...
Click to collapse
Guess you can add me to one of those unfortunate souls you can add to your list who keeps running back to you. :]
My question to you is - where did they take it back to? Do you have a URL showing a shipping address? Sure, HP HQ is a few miles away from me - but am not about to go knocking on their door and say "Yeah, uh - can you fix this?" Besides that is a corporate HQ - not a manufacturing plant.
I have two TPs and one (older one by about a month) has the connector going loose... It usually charges fine but once in a while, it fails to connect. Depending on the angle of the way the tablet meets the micro usb I will sometimes fail to connect it properly.
My other one has a very tight micro ubs port and it's hard to plug in, but it works fine everytime...
So my point is, make sure you have an actual connection when you plug in for charge.
Dunno if I'm just lucky or what, but my tp died on the way to work this morning, so I plugged it in when I got here, got the red battery symbol, and let it charge for about half an hour. Here is where I am now:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I should also note that it died in cm9, showed the battery screen, then when I checked it next, it had 7% or so in cm9 as well. Never had to boot into webOS for anything.
mountaindewmi said:
I installed CM7 in my friends TP back when that was the current release and about a month ago it went dead, wouldn't power up at all (no battery icon) and they still took it and repaired it with no problems.
In your case though I think you are fine... just leave it charging in that screen for a while. Then do a home/menu + power button reboot (15+ seconds) and see if you can get moboot. It may go back to the charging screen but thats fine, give it more time and try again. A few of my coworkers have the same problem sometimes and they come running to me, lol.
Click to expand...
Click to collapse
OK, did exactly what you said and plugged it in w/battery indicator in the red and walked away for a few hours. When I came back just now so far it was at 93%. Can I get a Hallelujah?
Ok, can anyone tell me what to do to prevent this from happening again in the future? Do I have to do any routine cache cleanup (?) or other general maintenance? Will booting into WebOS to charge before battery gets too low always work?
Thanks again folks-
@kstagg
kstagg said:
OK, did exactly what you said and plugged it in w/battery indicator in the red and walked away for a few hours. When I came back just now so far it was at 93%. Can I get a Hallelujah?
Ok, can anyone tell me what to do to prevent this from happening again in the future? Do I have to do any routine cache cleanup (?) or other general maintenance? Will booting into WebOS to charge before battery gets too low always work?
Thanks again folks-
@kstagg
Click to expand...
Click to collapse
Booting in WebOS before battery gets too low and charging in webos always works for me
Last time i drain my battery to 0% for the calibration. But it charges just fine after that.
Sent from my GT-I9100 using Tapatalk
I'm glad it worked for you! I would say just don't let it fully drain, lol. If it does, just repeat the steps and you should be ok. And you don't need to boot into webOS when it is low, you can plug it in while in android and it will be fine, as long as the battery isn't at 0% which is when it shuts off.
Mine is actually at the same point right now, fully drained.
Sometimes mine doesn't charge....because the USB cord gets ever so slightly slightly unplugged from the adapter.
Be sure to try that in the future.
~ E.R.A.
Hi there, long time lurker first time poster as I cant find this problem anywhere and my googlefu has failed me.
Background:
I have a HP Touchpad 32gb, Ive been running CM9 recently.
A month or two into first getting the touchpad I had problems turning it on (assumed battery problem) and got it fixed through HP warranty, returned the same device in working order, non the wiser about what went wrong.
Onto the problem at hand:
Nearly a year later the battery appears to go below safe capacity and wont turn on at all no matter the button combination used or charge/discharge tricks/chargers.
Resorted to taking apart, removing and charging the lipo battery with a RC battery charger and SUCCESS! powers up 100% battery etc.
HOWEVER now no matter what charger or cable combination I use the battery will not charge, webos claims that I am not using the official charger yet I have tried 2 official chargers and many micro usb cables to no avail.
Using JCSullin's TPChargeTest-v1.0 application displays that the device is only receiving 100ma charge using official charger and 0ma (!!) when charging from usb host.
my next guess is that the battery is dead/dying and need a new one, but before I shell out and wait for delivery of a battery I was wondering if anyone had any similar problems or perhaps a suggestion on how to fix this?
Thanks :good:
I have left the charger plugged in with the touchpad off for 24h+ and the battery has gone from 93% to 50% in that time. The battery is clearly not charging.
Does anyone have anything I could try?
If its the battery port, you can try to get a Touchstone charger, which will eliminate the need for a charging cable. If its the battery, the only thing you can really do is try and replace it if you know how. And you are charging it in a wall outlet right? Not a computer? Because a computer wont charge it.
Having exact same problem with my touchpad which previously was charging fine off the original ac charger.
Left it charging with wifi & screen off, went from 11% to 25% in a little over 8 hours ... Not good!
Ok, further update ...
Have swapped over the usb board with another TP brick. Its now charging at the recommended 2A from the wall/mains charger.
So ... best guess seems to point to the usb port/board being faulty. Guess the only option with that is to do what I did or use a wireless charger.
Peace
Edit - a further hint that it was the usb port, was that I could not get it recognised when plugging into pc or laptop. Not in any mode, shape or form...
I had the Usb board replaced while it was still under warranty. Your lucky (sort of) that you had a spare.
Aye, lucky! It's a tp that is totally resistive to any attempts at resurrection, even tpdebrick can't touch it! So it is serving another purpose, as a donor!
I guess a touchstone would have done but file transfer was gonna prove difficult ... the damaged USB port meant my pc could not understand what the hell was being plugged in ...
chris5s said:
Ok, further update ...
Have swapped over the usb board with another TP brick. Its now charging at the recommended 2A from the wall/mains charger.
So ... best guess seems to point to the usb port/board being faulty. Guess the only option with that is to do what I did or use a wireless charger.
Peace
Edit - a further hint that it was the usb port, was that I could not get it recognised when plugging into pc or laptop. Not in any mode, shape or form...
Click to expand...
Click to collapse
Sounds like a similar problem to me! I shall have a look for parts online. Might try a new battery aswell.
Thanks!
alowva said:
Sounds like a similar problem to me! I shall have a look for parts online. Might try a new battery aswell.
Thanks!
Click to expand...
Click to collapse
Out of interest, what happens when you connect to a pc with the USB cable? Is the device recognised? If not, likely the USB port is u/s and a new battery might be an unnecessary expense ... Just a thought.
Peace
chris5s said:
Out of interest, what happens when you connect to a pc with the USB cable? Is the device recognised? If not, likely the USB port is u/s and a new battery might be an unnecessary expense ... Just a thought.
Peace
Click to expand...
Click to collapse
Excellent idea! I have checked on android and webos and neither are detecting a USB connection to my PC, but it does detect as "charging" however Touchpad Charge Test still shows its charging at 0ma
I thought it might have been the port assembly that was broken, and I checked to see if it was seated properly where it connects to the motherboard and it seemed to be, perhaps a the data+ or - has been broken, I shall inspect it closer and maybe get out the multimeter.
Thanks for the idea, hopefully i can fix this without getting a new battery! :good:
I have checked the micro USB port on the TP and it seems that the data connections and even possibly the power connections aren't working.
Im going to attempt to resolder them before getting a replacement as they're hard to find and expensive (In in the UK) hopefully that will fix it.
alowva said:
Hi there, long time lurker first time poster as I cant find this problem anywhere and my googlefu has failed me.
Background:
I have a HP Touchpad 32gb, Ive been running CM9 recently.
A month or two into first getting the touchpad I had problems turning it on (assumed battery problem) and got it fixed through HP warranty, returned the same device in working order, non the wiser about what went wrong.
Onto the problem at hand:
Nearly a year later the battery appears to go below safe capacity and wont turn on at all no matter the button combination used or charge/discharge tricks/chargers.
Resorted to taking apart, removing and charging the lipo battery with a RC battery charger and SUCCESS! powers up 100% battery etc.
HOWEVER now no matter what charger or cable combination I use the battery will not charge, webos claims that I am not using the official charger yet I have tried 2 official chargers and many micro usb cables to no avail.
Using JCSullin's TPChargeTest-v1.0 application displays that the device is only receiving 100ma charge using official charger and 0ma (!!) when charging from usb host.
my next guess is that the battery is dead/dying and need a new one, but before I shell out and wait for delivery of a battery I was wondering if anyone had any similar problems or perhaps a suggestion on how to fix this?
Thanks :good:
Click to expand...
Click to collapse
Hello @alowva,
I know it's been a long time since you posted this.
Do you remember what pin did you plugin your LIPO charger?
Did you use nicad?
I have a very low battery I need to boost.
Thanks a lot
pas7771 said:
Hello @alowva,
I know it's been a long time since you posted this.
Do you remember what pin did you plugin your LIPO charger?
Did you use nicad?
I have a very low battery I need to boost.
Thanks a lot
Click to expand...
Click to collapse
Well this is a blast from the past...
I eventually gave up on this tablet, but not before soldering a usb cable directly to the charging board to get a little more life out of it!
However since then I have had plenty of experience with other phones, tablets and laptops, and bare 18650 liion cells recharging and reusing for other projects.
WARNING! DO THE BELOW AT YOUR OWN RISK, I TAKE NO RESPONSIBILITY FOR YOUR ACTIONS.
I would recommend taking out the battery from the tablet (which is possible to do without completely dissasembling if you're careful enough)
Once removed the battery itself has a 7 pin connector, the outside wires 2x red (positive + ) and 2x black (negative - ). check the voltage on the battery using a voltmeter, "healthy" voltage is between 3v and 4.2v, if its below 3v you may have issues depending on the charger and if the battery is internally damaged.
The easiest way to connect to a charger is to use some solid core wire (or paperclip) pushed into the white connector on the battery, one wire connecting both red cables, and another connecting both black cables. then connect those wires to the red (positive + ) and black (negative - ) cables on your charger.
Charge at a slow rate and and be careful not to connect red to black!
Make sure you dont leave the charger and battery on anything flamable, a concrete floor or baking tray might help, and keep an eye on it as if the battery is internally damaged it may swell and catch fire (search for videos of lithium battery fire)
I have had a lot of success with reviving batteries in this way, however its best to be safe!
EDIT: dont use NICAD charger, only liion or lipo charger
alowva said:
Well this is a blast from the past...
I eventually gave up on this tablet, but not before soldering a usb cable directly to the charging board to get a little more life out of it!
However since then I have had plenty of experience with other phones, tablets and laptops, and bare 18650 liion cells recharging and reusing for other projects.
WARNING! DO THE BELOW AT YOUR OWN RISK, I TAKE NO RESPONSIBILITY FOR YOUR ACTIONS.
I would recommend taking out the battery from the tablet (which is possible to do without completely dissasembling if you're careful enough)
Once removed the battery itself has a 7 pin connector, the outside wires 2x red (positive + ) and 2x black (negative - ). check the voltage on the battery using a voltmeter, "healthy" voltage is between 3v and 4.2v, if its below 3v you may have issues depending on the charger and if the battery is internally damaged.
The easiest way to connect to a charger is to use some solid core wire (or paperclip) pushed into the white connector on the battery, one wire connecting both red cables, and another connecting both black cables. then connect those wires to the red (positive + ) and black (negative - ) cables on your charger.
Charge at a slow rate and and be careful not to connect red to black!
Make sure you dont leave the charger and battery on anything flamable, a concrete floor or baking tray might help, and keep an eye on it as if the battery is internally damaged it may swell and catch fire (search for videos of lithium battery fire)
I have had a lot of success with reviving batteries in this way, however its best to be safe!
EDIT: dont use NICAD charger, only liion or lipo charger
Click to expand...
Click to collapse
Thanks for your explanation..
I have seen videos on Lipo battery revival.
mine is at 2.540v I will use a Lipo B6 charger, some people said that slow charging in nicad or nimem mode because on lipo mode it will show a low voltage.
I do have a lipo fireproof bag.
Do you know what the blue, yelow and green wire do?
Thanks
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Hi.
My galaxy tab s2 charging very slowly. It takes about 3 days to full charge.
I allready try 15 or more chargers and cabels (including original).
I format and delete cache files
I downgrade to android 6.0.1
I replace the charging port
The only thing i don't do is to replace the battery, but the battery (when finally get charged) drain like normal.
Please help i really dont have anymore ideas.
Thank you!
I have this also. Had slow charging for months. The first time samsung fixed it and sent me a new charger. The second time i was out of warranty so i replaced the charging port myself, tried many different chargers and cables and can't figure it out. It charges really really slow.
leyvatron said:
I have this also. Had slow charging for months. The first time samsung fixed it and sent me a new charger. The second time i was out of warranty so i replaced the charging port myself, tried many different chargers and cables and can't figure it out. It charges really really slow.
Click to expand...
Click to collapse
I charge with my Moto fast charger and it seems to charge it faster than the Samsung one.
jahciple said:
I charge with my Moto fast charger and it seems to charge it faster than the Samsung one.
Click to expand...
Click to collapse
if you have slow charging issue, the tablet gives you a warning to use the original charger to charge it fast. If you don't get the notification of slow charging, then your tablet doesn't have any charging issues.
update: i replaced the charging port and the battery. but still no luck. the percentages keep dropping when my fast charger is connected
i'm out of ideas so if someone have some thoughts i'm listening.
Itamar1239 said:
update: i replaced the charging port and the battery. but still no luck. the percentages keep dropping when my fast charger is connected
i'm out of ideas so if someone have some thoughts i'm listening.
Click to expand...
Click to collapse
I wanted to call Samsung and asked them what they fixed when I sent it to them when it was on warranty.
leyvatron said:
I wanted to call Samsung and asked them what they fixed when I sent it to them when it was on warranty.
Click to expand...
Click to collapse
now the battery stops charging at 22% (it takes 1 day to charge to 22% lol)
if you call samsung please let me know what they said.
thank you.
Itamar1239 said:
now the battery stops charging at 22% (it takes 1 day to charge to 22% lol)
if you call samsung please let me know what they said.
thank you.
Click to expand...
Click to collapse
did you disconnect and reconnect the battery?
leyvatron said:
did you disconnect and reconnect the battery?
Click to expand...
Click to collapse
I did.
And like i said i even replace the battery
But still no luck.
I suspect that some chip on the motherboard is not working right, but that just guessing.
Any more ideas are more than welcome
Itamar1239 said:
I did.
And like i said i even replace the battery
But still no luck.
I suspect that some chip on the motherboard is not working right, but that just guessing.
Any more ideas are more than welcome
Click to expand...
Click to collapse
Also out of ideas myself
As I wrote on samsungboard recently;
"I have tried multiple cables*(that work fine with all other phones - Samsung S7/Galaxy tab S2 9.7/Sony etc)
I have tried multiple chargers (Samsung quick charge as well as Samsung standard and Anker 6 port charger)
Tried changing the USB mode (*#0808#)
I have tried resetting device (long press vol up/down/power)
When connecting device to PC to use Odin to downgrade it is not even seen by Windows 10 (again it only charges albeit slowly - this to me is an indication that D+/D- are not handled correctly by the PMIC sw which in my mind is the root cause of this whole issue).
"
https:// us. community.samsung.com/t5/forums/v3_1/forumtopicpage/board-id/tablets/thread-id/1961/page/5
I also see in devops bugreport-xxxx.txt cable type is 4 and wire_status 4;
<6>[16050.764777] [c1] sec-battery battery.27: sec_bat_set_property: current_cable(4), wc_status(0), wire_status(4)
<6>[16050.764884] [c0] sec-battery battery.27: sec_bat_cable_work: Start
<6>[16050.764904] [c0] sec-battery battery.27: sec_bat_cable_work: Cable is NOT Changed(4)
<6>[16050.767168] [c1] sii8240: detection restarted
<6>[16050.767187] [c1] of_sii8240_hw_reset()
<6>[16050.769768] [c1] sec_chg_get_property: slow-charging mode
Whereas in kernel/kmsg logs cable type is 1;
<6>[ 4.613200] [c6] sec_chg_get_property: Charger Cable type : 1
Skickat från min BLA-L29 via Tapatalk
luckeb said:
As I wrote on samsungboard recently;
"I have tried multiple cables*(that work fine with all other phones - Samsung S7/Galaxy tab S2 9.7/Sony etc)
I have tried multiple chargers (Samsung quick charge as well as Samsung standard and Anker 6 port charger)
Tried changing the USB mode (*#0808#)
I have tried resetting device (long press vol up/down/power)
When connecting device to PC to use Odin to downgrade it is not even seen by Windows 10 (again it only charges albeit slowly - this to me is an indication that D+/D- are not handled correctly by the PMIC sw which in my mind is the root cause of this whole issue).
"
https:// us. community.samsung.com/t5/forums/v3_1/forumtopicpage/board-id/tablets/thread-id/1961/page/5
I also see in devops bugreport-xxxx.txt cable type is 4 and wire_status 4;
<6>[16050.764777] [c1] sec-battery battery.27: sec_bat_set_property: current_cable(4), wc_status(0), wire_status(4)
<6>[16050.764884] [c0] sec-battery battery.27: sec_bat_cable_work: Start
<6>[16050.764904] [c0] sec-battery battery.27: sec_bat_cable_work: Cable is NOT Changed(4)
<6>[16050.767168] [c1] sii8240: detection restarted
<6>[16050.767187] [c1] of_sii8240_hw_reset()
<6>[16050.769768] [c1] sec_chg_get_property: slow-charging mode
Whereas in kernel/kmsg logs cable type is 1;
<6>[ 4.613200] [c6] sec_chg_get_property: Charger Cable type : 1
Skickat från min BLA-L29 via Tapatalk
Click to expand...
Click to collapse
thank for the info.
Like I said, I sent in my tablet to Samsung when it was under warranty with the original white samsung charger and they sent the tablet back with a slower charging black samsung charger. I have exchange the usb port, tried different cables and plugs, tried resetting, etc... and nothing has worked.
Keep us updated on what happens. :good:
leyvatron said:
thank for the info.
Like I said, I sent in my tablet to Samsung when it was under warranty with the original white samsung charger and they sent the tablet back with a slower charging black samsung charger. I have exchange the usb port, tried different cables and plugs, tried resetting, etc... and nothing has worked.
Keep us updated on what happens. :good:
Click to expand...
Click to collapse
Hi, Charging cable from Cambridge Soundworks Oontz angle 2 has worked for me.
hi Guys!!!!!!!! i too had the same problem stated above and i got the reason of it in youtube and here is the link of the video:
and this video tells that we need to replace the IC of the device where this problem is very common in most of samsung galaxy tab s2's
vjackaadhitya said:
hi Guys!!!!!!!! i too had the same problem stated above and i got the reason of it in youtube and here is the link of the video:
and this video tells that we need to replace the QC of the device where this problem is very common in most of samsung galaxy tab s2's
Click to expand...
Click to collapse
That's not something most people can do... successfully. These are the hardest type of ICs to replace. A precision temp controlled hot air station with the skillset to use it is required. Full ESD protocols need to followed. You can easily destroy the multilayered PCB if you don't do it right... you get one shot at it.
I have T715Y, and it's really slow to charge. The current monitor show that it only pull 0.45A. The charger itself capable of supplying more than 2A on other device.
On the tablet, I try to monitor the current internally, and it said it connect to usb powered, not ac powered, and I already tried swapping other chargers. Maybe that's why it's only pulling half amps. Tried cleaning the charging port with some isoprophil alcohol and pinset, nothing change. Maybe I need to swap the charging port, but searching it in 2021 was hard.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
@xdanubi it shouldn't use AC as batteries are only being charged by DC.
xdanubi said:
I have T715Y, and it's really slow to charge. The current monitor show that it only pull 0.45A. The charger itself capable of supplying more than 2A on other device.
On the tablet, I try to monitor the current internally, and it said it connect to usb powered, not ac powered, and I already tried swapping other chargers. Maybe that's why it's only pulling half amps. Tried cleaning the charging port with some isoprophil alcohol and pinset, nothing change. Maybe I need to swap the charging port, but searching it in 2021 was hard.
View attachment 5389291
Click to expand...
Click to collapse
If the device is in use it will likely skew the charging curve and not draw as much as with the screen off. If you turn the display on and read within a second or less while charging you can probably see what it's actually drawing screen off.
Or simply count how many seconds it takes to charge 1% or minutes to charge to 10%, etc.
If the battery capacity has dropped more than 80% of it's original capacity it's time to replace it before it fails.
Any battery swelling is a failure, replace asap.
Erratic charging can indicate a failure as well.
A sudden drop in capacity indicates a failure.
It could simply be a failed battery.
A battery will last roughly 1-3 years depending how it's used/conditions ie temperature and time it's at near 100%.
My S2 started exhibiting this problem too. Basically it won't pull more than 450 ma from the charger. I discovered that with a custom charge cable that shorts the usb lines together, I was able to get it to draw about 1.5 amps @ 5v. You can get a little more if you supply it with a little more volts (5.5 for instance).
Currently i am using a bench power suppy connected to a micro usb tail that has the dp dm lines tied together.
I have some usb c female breakouts coming from amazon today that I will solder on to my custom micro usb tail which will hopefully allow me to charge it from my 6 port vogek charger.
I agree that it most likely had an IC go bad but replacing that is a MAJOR under taking. 1.5 amps is enough that it will still get about 1 amp charge while your actively using it so theoretically it should go from 0 to 100% in 5.8 hours. Less if you power it down. Good enough!
trnexus01234 said:
My S2 started exhibiting this problem too. Basically it won't pull more than 450 ma from the charger. I discovered that with a custom charge cable that shorts the usb lines together, I was able to get it to draw about 1.5 amps @ 5v. You can get a little more if you supply it with a little more volts (5.5 for instance).
Currently i am using a bench power suppy connected to a micro usb tail that has the dp dm lines tied together.
I have some usb c female breakouts coming from amazon today that I will solder on to my custom micro usb tail which will hopefully allow me to charge it from my 6 port vogek charger.
I agree that it most likely had an IC go bad but replacing that is a MAJOR under taking. 1.5 amps is enough that it will still get about 1 amp charge while your actively using it so theoretically it should go from 0 to 100% in 5.8 hours. Less if you power it down. Good enough!
Click to expand...
Click to collapse
What is your experience so far? Does your custom cable work? If yes can you please be more specific how to construct it? There are many users with the same problem!