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Bricked Touchpad need help

NOTE - I added this post here thinking the CM9 experts could help. I then realized it should be in the Q&A section. If this does not belong here, I ask a moderator to please delete it.
I have been running CM9 nighties for some time now with no issues on my 16GB US WiFi only Touchpad. I installed TWRP and after some time decided to remove it and just use CWM. After trying several things from the posts (which would not work) I decided to remove CM9 completely then reinstall. This is where I got into trouble...
I loaded all necessary CM9 files in the cminstall folder on the Touchpad. I successfully ran ACMEUninstaller and got back to the WebOS language selection (i.e. the initial WebOS screen from factory). Instead of logging into WebOs (felt there was no-need since I never use it), I put the unit in Download mode (vol down + power). I then ran ACMEInstaller2. I received an error (text on the black touchpad screen which I assume is the bootloader) saying the needed files were not installed and something like "remove the wall". I thought I would reboot the unit and now log into WebOS and reinstall the CM9 files (thinking I made a typo when loading them). Now I cannot get the Touchpad to reboot - totally black and even when connected to the PC I dont get the USB connection sound.
Does anyone know if there is a hardware method to bring the unit back (maybe a different sequence of button presses or shorting a pin on the USB connector)? I have tried home+vol up+power, home+vol down + power, home + power, and of course power only and home only. Each combination was held for 30 seconds and then again for a minute and with power connected, PC connected, and nothing connected to the USB port.
Any thoughts would be greatly appreciated.
Resolution: In a post I saw dated May of 2012, the user indicated HP was still honoring their warranty. I contacted HP via their Chat service, after giving them my model and serial number, I was told I had three weeks remaining on my warranty. HP sent me the return box with authorization and in a week I received (what seems to be) my exact Touchpad... only now it booted just fine. I have since reinstalled ICS and am running fine. Thanks to all who responded. I wanted to share this as I am extremely impressed with HP's warranty service (no questions were asked if I had rooted the device, where I bought the device, etc).

I remember this happened on my brothers and what it was is that the battery was completely dead. I believe it has a backup that needs to charge before the main one. That's the only time I have personally seen this happen. Perhaps if you leave it on the charger for a while it will boot and u can use web os doctor to get it to stock.
Live and Die on this day....

chozyn said:
I remember this happened on my brothers and what it was is that the battery was completely dead. I believe it has a backup that needs to charge before the main one. That's the only time I have personally seen this happen. Perhaps if you leave it on the charger for a while it will boot and u can use web os doctor to get it to stock.
Live and Die on this day....
Click to expand...
Click to collapse
Thanks, I let it charge all night then tried it this morning (as described not just powering it on). Of course, with only a black screen I can't tell what the charge is. I have checked the cable and am now using a different power supply in case that had failed. I think because this happened during the removal/install process I scrogged something in the bootloader?

enmriley said:
Thanks, I let it charge all night then tried it this morning (as described not just powering it on). Of course, with only a black screen I can't tell what the charge is. I have checked the cable and am now using a different power supply in case that had failed. I think because this happened during the removal/install process I scrogged something in the bootloader?
Click to expand...
Click to collapse
It's a good idea to use only stock cable and charger.
Sent from my ClassicJewel

enmriley said:
Thanks, I let it charge all night then tried it this morning (as described not just powering it on). Of course, with only a black screen I can't tell what the charge is. I have checked the cable and am now using a different power supply in case that had failed. I think because this happened during the removal/install process I scrogged something in the bootloader?
Click to expand...
Click to collapse
Are you able to get into download mode at all?

A$$h4t said:
Are you able to get into download mode at all?
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Click to collapse
No, totally black device. I was hoping at least I'd get the USB connection on my PC, but not even that.

enmriley said:
No, totally black device. I was hoping at least I'd get the USB connection on my PC, but not even that.
Click to expand...
Click to collapse
This happened once to my TP when I first put CM7 on the device a while back. I woke up one morning, forgot to plug it in overnight and it had died. No response to any charger, I was getting worried but then I found a solution. With it plugged in, hold the power button and home button down together for 15 to 30 seconds. It was that or hold the power button down and keep pressing the home key over and over. Not 100% sure, but it came back to life and I remember it took me a couple tries. Try holding both down simultaneously for 30 seconds or a minute, if that doesn't work, push and hold power first then home right after and hold both for 30 seconds.

Okay.... hard reset has been a life saver for me. Hold the home button down, then press and hold the power button, so you will be pressing them at the same time. Keep holding them till you see the HP splash screen, it may take a few min and seem like nothing is happening. I thought I fried mine the first day I got it, but this worked for me!
Good luck!
And, if you decide that does not work for you there is such a thing as the WebOS doctor which will get you back to stock. Link here: http://en.m.webos-internals.org/wiki/How_To_Recover?wasRedirected=true

-SGA- said:
Okay.... hard reset has been a life saver for me. Hold the home button down, then press and hold the power button, so you will be pressing them at the same time. Keep holding them till you see the HP splash screen, it may take a few min and seem like nothing is happening. I thought I fried mine the first day I got it, but this worked for me!
Good luck!
And, if you decide that does not work for you there is such a thing as the WebOS doctor which will get you back to stock. Link here: http://en.m.webos-internals.org/wiki/How_To_Recover?wasRedirected=true
Click to expand...
Click to collapse
This post should do the trick for you....just press the power and home buttons at the same time, hold them down for about 30 seconds until you see the HP logo on the screen then release them...good luck!!!:good:

rhidalgo1973 said:
This post should do the trick for you....just press the power and home buttons at the same time, hold them down for about 30 seconds until you see the HP logo on the screen then release them...good luck!!!:good:
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Click to collapse
Nope... As stated in the OP, "I have tried home+vol up+power, home+vol down + power, home + power, and of course power only and home only. Each combination was held for 30 seconds and then again for a minute and with power connected, PC connected, and nothing connected to the USB port."
I need to know if ACME Installer is doing anything in the Bootloader. I have flashed and reflashed CM7, CM9, and multiple ROMs. Even uninstalled CM all together when I went from CM7 to CM9. I am familiar with getting into Download Mode and the hard reset (which apparently isn't solving this issue).
I appreciate the feedback, just hoping someone familiar with the Bootloader and Touchpad partitions can help out.

enmriley said:
Nope... As stated in the OP, "I have tried home+vol up+power, home+vol down + power, home + power, and of course power only and home only. Each combination was held for 30 seconds and then again for a minute and with power connected, PC connected, and nothing connected to the USB port."
I need to know if ACME Installer is doing anything in the Bootloader. I have flashed and reflashed CM7, CM9, and multiple ROMs. Even uninstalled CM all together when I went from CM7 to CM9. I am familiar with getting into Download Mode and the hard reset (which apparently isn't solving this issue).
I appreciate the feedback, just hoping someone familiar with the Bootloader and Touchpad partitions can help out.
Click to expand...
Click to collapse
If the battery was low when you got into this state then it could be that there is not enough power to even let the charging circuits work properly. WebOS has better protection against getting into this fix.
I experienced this once and the trick that fixed it for me was to connect the standard micro USB to the Touchpad and use the standard HP charger unit. Then repeatedly remove the big USB from the charger, wait about 5 seconds then plug it in, wait about 10 seconds and repeat the cycle. After about twenty goes I was rewarded with the battery low icon and it started charging again. I think the theory behind this trick is that when you first plug the power in the battery gets a bit of charge before the circuits kick in, detect very low battery and stop the charging cycle. Doing it enough times gets enough charge into the battery to kick start proper charging.
Now I am not saying this will fix your problem but it might be worth giving it a go.
To prevent myself ever getting into this state again indavertently I now have Tasker set up to shutdown the whole device if the battery level drops below 8%.

bobtidey said:
If the battery was low when you got into this state then it could be that there is not enough power to even let the charging circuits work properly. WebOS has better protection against getting into this fix.
I experienced this once and the trick that fixed it for me was to connect the standard micro USB to the Touchpad and use the standard HP charger unit. Then repeatedly remove the big USB from the charger, wait about 5 seconds then plug it in, wait about 10 seconds and repeat the cycle. After about twenty goes I was rewarded with the battery low icon and it started charging again. I think the theory behind this trick is that when you first plug the power in the battery gets a bit of charge before the circuits kick in, detect very low battery and stop the charging cycle. Doing it enough times gets enough charge into the battery to kick start proper charging.
Now I am not saying this will fix your problem but it might be worth giving it a go.
To prevent myself ever getting into this state again indavertently I now have Tasker set up to shutdown the whole device if the battery level drops below 8%.
Click to expand...
Click to collapse
Bobtidey
To prevent myself or more importantly my daughters tablet ever having this problem I have now purchased Tasker as recommend by yourself and others. But cannot yet figure out how to setup an automatic shutdown, if you have the time could you possibly advise how to do it . I have read the guide but am struggling any help would be appreciated.
Thanks

sstar said:
Bobtidey
To prevent myself or more importantly my daughters tablet ever having this problem I have now purchased Tasker as recommend by yourself and others. But cannot yet figure out how to setup an automatic shutdown, if you have the time could you possibly advise how to do it . I have read the guide but am struggling any help would be appreciated.
Thanks
Click to expand...
Click to collapse
In Tasker add a New profile and give it a name like Battery_Low
Choose State and then Power for the profile.
In Power choose Battery level and set From to 0 and To to say 8%
Set New Task and do Add give it a name like Shutdown and then pick the Misc category
Choose Reboot and set Reboot type to Shutdown
All done. When battery level drops to 8% or below then Tasker will shut the tablet down. Note it will do this without warning. I think one could probably arrange a pop up warning first but I preferred to keep it simple.

bobtidey said:
If the battery was low when you got into this state then it could be that there is not enough power to even let the charging circuits work properly. WebOS has better protection against getting into this fix.
I experienced this once and the trick that fixed it for me was to connect the standard micro USB to the Touchpad and use the standard HP charger unit. Then repeatedly remove the big USB from the charger, wait about 5 seconds then plug it in, wait about 10 seconds and repeat the cycle. After about twenty goes I was rewarded with the battery low icon and it started charging again. I think the theory behind this trick is that when you first plug the power in the battery gets a bit of charge before the circuits kick in, detect very low battery and stop the charging cycle. Doing it enough times gets enough charge into the battery to kick start proper charging.
Now I am not saying this will fix your problem but it might be worth giving it a go.
To prevent myself ever getting into this state again indavertently I now have Tasker set up to shutdown the whole device if the battery level drops below 8%.
Click to expand...
Click to collapse
I have tried this since your post - thanks. No luck, but will continue to try. I found a post online with disassembly instructions. I think I may try pulling the battery. Looks rather easy... with the right tools.

enmriley said:
I have tried this since your post - thanks. No luck, but will continue to try. I found a post online with disassembly instructions. I think I may try pulling the battery. Looks rather easy... with the right tools.
Click to expand...
Click to collapse
The only way I know is to put it on a Touchstone and after an hour or so it Will come back to life. All thanks to Reverand KYLE. His site is well worth checking out.

[Q] HP Touchpad battery doesn't seem to charge. Is it dead?

I have a HP Touchpad that I just opened from its box, so its brand new running stock HP WebOS. The thing is, I bought the tp almost 15 months ago and never unboxed it until yesterday. When I put it up for charging, the dead battery symbol appears( rectangle with a red dash at the bottom and flash on top) and doesn't seem to charge.
Can anyone tell me if this means that my battery has died since it was unused for such a long time?
Or is there anything else that I can do to spring it back to life?
P.S I've tried almost every combination of buttons, e,g Power+Home, Power+Home+Vol Up etc.
Any suggestions on this will be extremely helpful. Thank you very much!

sylar73 said:
I have a HP Touchpad that I just opened from its box, so its brand new running stock HP WebOS. The thing is, I bought the tp almost 15 months ago and never unboxed it until yesterday. When I put it up for charging, the dead battery symbol appears( rectangle with a red dash at the bottom and flash on top) and doesn't seem to charge.
Can anyone tell me if this means that my battery has died since it was unused for such a long time?
Or is there anything else that I can do to spring it back to life?
P.S I've tried almost every combination of buttons, e,g Power+Home, Power+Home+Vol Up etc.
Any suggestions on this will be extremely helpful. Thank you very much!
Click to expand...
Click to collapse
Just plug it in with the supplied USB and power connector for up to 4 hours. Do not use computer USB.

Carey4782 said:
Just plug it in with the supplied USB and power connector for up to 4 hours. Do not use computer USB.
Click to expand...
Click to collapse
I've been charging it overnight. But it still hasn't booted normally.

sylar73 said:
I've been charging it overnight. But it still hasn't booted normally.
Click to expand...
Click to collapse
I have no idea if this will work, but you might try it:
http://www.slashreboot.com/journal/2012/8/18/an-odd-hp-touchpad-charging-problem.html
Here's another miscellaneous advice:
The round part of the charger, that the USB plugs into. That can twist open and closed to remove the part with the plugs. Make sure its fully tight. They can become loose, which prevents them from working.
Hold the power and home buttons down (not the volume +). press these together and hold them down for 30 seconds (actually shouldn't be that long, but it cant hurt)
If its still not working. Let it charge overnight and try again.
Click to expand...
Click to collapse

shumash said:
I have no idea if this will work, but you might try it:
http://www.slashreboot.com/journal/2012/8/18/an-odd-hp-touchpad-charging-problem.html
Here's another miscellaneous advice:
Click to expand...
Click to collapse
Thanks, I'll try that.

Perhaps not quite the same problem, but what I had fail on mine was the HP USB cable - The little contacts must have gotten dirty or something because the Touchpad just wouldn't charge unless I bent the connector in the socket a little.
Not too keen on that so I now use a different USB cable and it's fine.
I also agree with the above, use the dedicated charger supplied and not a USB port.

Dead Atrix HD

Hi.
My white Atrix HD is dead. It does not power and does not give any sign of life.
Phone was working perfectly, then it froze and after that it shuted down... never coming back. Was running stock.
First I thought it was the battery, but checking it with a voltmeter it shouws around 4Volts so it's OK for at least power the phone, I also recharged the battery separatly with an external charger...
Phone is still not powering. I tried every key comination to no avail.
If I plug it to my PC with the battery connected the green led appears for a while, then it goes off...
If I connect the phone to my PC with out the battery, then the green led stay lit forever...
What do you think it could be? Battery is dead? (It does supply voltage but you never know...)
Maybe a burned fuse on the motherboard?
Any help pinpointing the cause of the problem would be greatly appreciated.
Good luck!

Did you try to replace with other battery ?

MGA2009 said:
Hi.
My white Atrix HD is dead. It does not power and does not give any sign of life.
Phone was working perfectly, then it froze and after that it shuted down... never coming back. Was running stock.
First I thought it was the battery, but checking it with a voltmeter it shouws around 4Volts so it's OK for at least power the phone, I also recharged the battery separatly with an external charger...
Phone is still not powering. I tried every key comination to no avail.
If I plug it to my PC with the battery connected the green led appears for a while, then it goes off...
If I connect the phone to my PC with out the battery, then the green led stay lit forever...
What do you think it could be? Battery is dead? (It does supply voltage but you never know...)
Maybe a burned fuse on the motherboard?
Any help pinpointing the cause of the problem would be greatly appreciated.
Good luck!
Click to expand...
Click to collapse
Try this. While plugged into a power source, hold all 3 buttons on the right side. Once the light turns off, unplug the phone and hold the power button (top of the 3). Once it gets to the boot animation, you can plug it back in. Or you can just check the battery level and make sure it's not something wrong with the screen by doing what I said but never unplugging it.
Sent from my MB886 using Tapatalk

Thanks for your reply...
Nothing... It's just dead. I think it might be the battery but first of of all it does give voltage and second i don't have other battery to test it. I could use another's phone battery but don know if that would work.

If ur adventurous enough to open up the phone like u would open up to do the EB40 battery mod, try to disconnect the battery completely by un-screwing the battery from the terminal for 30 seconds. Then connect back and try to power up. What you described happened to me once when I was doing the mod and it worked like a charm.
Good luck!
sent from my Atrix HD MAXX

penser said:
Try this. While plugged into a power source, hold all 3 buttons on the right side. Once the light turns off, unplug the phone and hold the power button (top of the 3). Once it gets to the boot animation, you can plug it back in. Or you can just check the battery level and make sure it's not something wrong with the screen by doing what I said but never unplugging it.
Sent from my MB886 using Tapatalk
Click to expand...
Click to collapse
worked like a charm for me
thank you

MGA2009 said:
Thanks for your reply...
Nothing... It's just dead. I think it might be the battery but first of of all it does give voltage and second i don't have other battery to test it. I could use another's phone battery but don know if that would work.
Click to expand...
Click to collapse
hey did you get it fixed, my atrix hd has done the same thing to me

Xperia T not charging occasional boots

I hate making new threads but I just had to:
Okay so first my problem:is that the phone is dead. I used it till it drained and now it refuses to start. The red light comes on but battery does not seem to charge fast enough and once it acquires the minimal charge, it spontaneously reboots and wastes that battery. Then I am back to square one. This keeps on happening. It has become really annoying.
I have read many threads. Actually I spent the last two hours or so trying various things. So if someone can tell me a solution, it would be great!

Any help is appreciated because I am helpless right now.

The first thing to do/try is to charge it for at least 24hs without touching it, just let it charge. Then try to turn it on.
Sent from my LT30p using xda app-developers app

Mad Marty said:
The first thing to do/try is to charge it for at least 24hs without touching it, just let it charge. Then try to turn it on.
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
I tried. It charges a little and it turns itself on and burns out the charge. But I fixed it! After a lot of time!
Thank you for your interest. I will hit thanks later since I am on my limit.

thedisturbedone said:
I tried. It charges a little and it turns itself on and burns out the charge. But I fixed it! After a lot of time!
Thank you for your interest. I will hit thanks later since I am on my limit.
Click to expand...
Click to collapse
I've got this exact problem and I've tried all the 'fixes' google has to offer and none work. When I plug it in to charge no light comes on the only way to get it to charge is to hold VOL UP while pressing the Power button. You then have to hold the power button down to keep the charging light lit. However, once it has enough juice to boot it does just that (because the power button is held I guess) It boots all the way into Android and then shuts down because it does not have enough power (and isn't detecting the USB power).
How did you fix yours?
EDIT: FYI My Xperia T has not been rooted and is running the latest official firmware 4.3.

Charge for at least 24hrs with the original wall charger
Sent from my LT30p using xda app-developers app

Mad Marty said:
Charge for at least 24hrs with the original wall charger
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
OK I've tried that and it's still not charging (no red light). The battery is definitely flat as I get no lights at all when pressing the power button without it being connected to power. I can only get the power light to come on by holding the power button. It's been sat here connected to the charger for 2 hours. Going to try the rubber band trick again (holding the power button down).

2 hours charging is definitely not long enough. Just let it charge for 24 hours and don't mess with it in the mean time.
Sent from my LT30p using xda app-developers app

Quexex said:
OK I've tried that and it's still not charging (no red light). The battery is definitely flat as I get no lights at all when pressing the power button without it being connected to power. I can only get the power light to come on by holding the power button. It's been sat here connected to the charger for 2 hours. Going to try the rubber band trick again (holding the power button down).
Click to expand...
Click to collapse
OK I got the usual power up and instant power down because of low power. However I've banded the power button and the Vol Up buttons and it appears to be accepting charge without starting the phone. I'm going to leave it charge overnight hopefully it wont continuously boot cycle... Balls as I wrote this it had been charging for the longest time yet (about 40 mins) still not enough to get ti to boot android without instantly shutting down

Mad Marty said:
2 hours charging is definitely not long enough. Just let it charge for 24 hours and don't mess with it in the mean time.
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
It did charge for 24Hours no change, so then I tried (as advised elsewhere) to charge it again this time I waited 2 hours expecting the red light to come on but nothing...
The advice was charge for 24hours - no light shows as the battery is now discharging. The battery was totally flat this afternoon (no blinking lights when pressing power). Then disconnect the power and try and charge it, it should now show it's charging but it never did, maybe I should have waited longer.

Quexex said:
It did charge for 24Hours no change, so then I tried (as advised elsewhere) to charge it again this time I waited 2 hours expecting the red light to come on but nothing...
The advice was charge for 24hours - no light shows as the battery is now discharging. The battery was totally flat this afternoon (no blinking lights when pressing power). Then disconnect the power and try and charge it, it should now show it's charging but it never did, maybe I should have waited longer.
Click to expand...
Click to collapse
OK the final 'fix' I found while googling this was to take the back off and disconnect the battery. This seems to have worked immediately my phone showed a red light and then booted up showing the battery charging symbol on screen - a welcome sight!

[Q] HP Touchpad not charging...no charging sign

My HP Touchpad was working fine until a few days ago, my little sister was using it and she drained the battery. I plugged it into the wall socket and it started giving the drained battery/charging sign. I let it charge over night but in the morning it was still giving the same sign. Also the homescreen button had a white light blinking(to and fro). I still let it charge for 5-6 hours but still nothing. I went online to look up what was wrong and read that the cylindrical adapter has a twist-and-lock feature and this can become slightly untwisted over time and so i untwisted it and re-attached it(heard the click) and then connected the cable. But now, there is no charging sign, no blinking light, the PWR +HOME and PWR+HOME+VOL option isnt working. Any idea guys?

USB cable often faulty
HasanRJ said:
My HP Touchpad was working fine until a few days ago, my little sister was using it and she drained the battery. I plugged it into the wall socket and it started giving the drained battery/charging sign. I let it charge over night but in the morning it was still giving the same sign. Also the homescreen button had a white light blinking(to and fro). I still let it charge for 5-6 hours but still nothing. I went online to look up what was wrong and read that the cylindrical adapter has a twist-and-lock feature and this can become slightly untwisted over time and so i untwisted it and re-attached it(heard the click) and then connected the cable. But now, there is no charging sign, no blinking light, the PWR +HOME and PWR+HOME+VOL option isnt working. Any idea guys?
Click to expand...
Click to collapse
The USB cable that comes with the tablet often breaks. If you're still using the original one try a different cable and leave it charging overnight. You can also hold down the Power button and click the Home key 14 times for a reboot, holding power and home usually works when the TP is not responding. Hope this helps:fingers-crossed: