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Old April 30th, 2012, 07:01 PM   #1 (permalink)
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Default HP TouchPad battery drained and won't turn on... please help

Hi everyone,

I installed CM9 Tenderloin nightlies on my TouchPad and I loved it. However, my battery drained a couple weeks ago and I have had NO success in reviving it. The screen is blank and the charger is cold, indicating that it is not charging. I left it charged for a week and still nothing. I tried pressing a bunch of button combinations to reset it, plugging in the computer and tried to run WebOS doctor, made sure it wasn't my charger by locking the the prongs, etc, etc, etc... I finally gave up and decided to give HP a call. No surprise, they didn't know what was going on and told me to ship my TouchPad in... until they found out that I installed Android on my device.

They claimed that by installing Android, I had irreversibly destroyed the hardware of the TouchPad and it would cost $230+ to fix. Ridiculous, considering I paid $150. They couldn't explain the science behind their reason so I just gave up and hung up.

Is there anyone, I mean ANYONE!!! out there that can help me? I would greatly appreciate it!!

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Old April 30th, 2012, 07:29 PM   #2 (permalink)
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Holding down the power and home buttons for 30 seconds is the hard reset combination. If you haven't already, I'd try that before charging.

The stock charger/stock cable is good for 2 amps, but you should be able to charge at a slower rate using another charger/cable combination, it'll just take longer. (Printing on the charger will tell how much it can produce.) A laptop will only charge at 1/2 amp, which may not be enough to charge if the device is running and screen on. I feel it's easy to damage your cable, so if it has a kink by either end, it's suspect IMO.

I'd test the stock charger combo on another device to make sure it works.

I have seen some reports (Rootzwiki?) of CM7/CM9 that fail to charge. Sorry, I don't recall if there was any resolution tho.

Assuming your charger and cable are perfect, some people have had luck using the HP Touchstone charger (inductive), about $35 on Amazon. This may be your best bet.
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Old May 1st, 2012, 12:06 AM   #3 (permalink)
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Thanks colchiro, but I already tried to hard reset my TouchPad multiple times with absolutely no luck. I am positive it is not my charger as well since it charges my friend's TouchPad with no problem. I might have to try that HP Touchstone...

Thanks again.

Anyone else? I'm desperate!!
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Old May 1st, 2012, 06:19 AM   #4 (permalink)
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Have you seen this post? Hp TouchPad CM9 and CM7 Charging Problem *FIX*
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Old May 1st, 2012, 10:45 AM   #5 (permalink)
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I have, I guess I just have to take apart my TouchPad and see if anything's loose. Thanks for all your help.
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Old May 1st, 2012, 03:36 PM   #6 (permalink)
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Do you really think you'll find anything? Electronic parts pretty much look the same unless you fried something.

Unless this is something you're good at, I'd pick up the Touchstone. You should be able to have it within a week and it won't reduce the value of your TP.
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Old May 1st, 2012, 11:04 PM   #7 (permalink)
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Thanks for the tip. I'll consider buying the TouchStone. Will keep you posted!! *fingers crossed*
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Old May 2nd, 2012, 06:42 PM   #8 (permalink)
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Good luck. Keep us updated.
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Old May 12th, 2012, 01:51 AM   #9 (permalink)
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This appears to be a serious issue: [ROM] UNOFFICIAL CM9 Nightly Builds - HP Touchpad Android Development - RootzWiki - Page 139

Quote:
Originally Posted by Nevertells
I have posted the following in other threads and forums. I'm posting it here to get the widest dissimination.

This has been discussed in several different forums and threads at great length. I can't say that this is the perfect solution to every issue, but I have put 2+2 together and found that what I am about to describe is repeatable.

DO NOT turn your TouchPad off and then plug it in to charge! Here is what will most likely happen, plugging it will start it back up and unless you have Moboot set to boot to WebOS, your TP will boot into CM9 and will not charge. I have tested this many times on mine and several friends TP's and it happens every time. If you need to charge your TP while in Android, leave it on, plug it in and tap the power button to put it to sleep. You might want to turn off wifi to allow your TP to charge faster.

I can't speak to any other rom or kernel other than CM9. If you are running AOKP or Bricked, CN or CherryKang, you might want to test this and report back what you find.

Hopefully the CM team will resolve this, but until then, if you want to avoid at least one cause of charging issues, heed this warning.
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Old May 12th, 2012, 10:43 AM   #10 (permalink)
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My wife is always running her TP down to 0, and it wont turn on. The wall charger is useless when she does this, I just need to put it on the TouchStone over night, then the next morning, I have to hold down the power and home button for about 30 seconds and it will finally turn on and it always shows charged at about 30%.
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Old May 12th, 2012, 11:32 AM   #11 (permalink)
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I never go below about 60%, but my wife could easily leave hers on. She usually uses her Touchstone to charge tho. Before she had that and the shutdown bug still existed (where it would reboot instead of shutting down), she'd run it dead quite often.
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Old May 12th, 2012, 12:25 PM   #12 (permalink)
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Office Depot had the Touchstone on clearance for $6.88 if you can find one in stock, there are instructions on this page how to check the inventory:

HP Touchstone Charger - $6.88 @ Office Depot - YMMV - Slickdeals.net
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Old May 12th, 2012, 01:10 PM   #13 (permalink)
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If you can find one in stock...
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Old May 13th, 2012, 03:00 AM   #14 (permalink)
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Quote:
Originally Posted by colchiro View Post
Yikessssss. I hope they find a way to revive my bricked TouchPad. Haven't had time to buy a TouchStone yet, but I am hopeful that it will work.

I'll be sure to keep my eyes peeled for any good deals... Thanks Jericko
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Old May 16th, 2012, 11:48 AM   #15 (permalink)
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So my TouchStone came in the mail yesterday and I left my TouchPad on it overnight... no luck. Would not turn on by holding the power button or by holding the power+home button. =(

I can confirm the TouchStone works as I tried it on my friend's TouchPad. I will continue to leave the TouchPad on the TouchStone for a couple more days, but I don't think it's going to make the difference since the back of my TouchPad is still cold indicating that it is not charging.

Any other ideas guys?
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Old May 16th, 2012, 04:30 PM   #16 (permalink)
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It would be interesting to know if your battery has a charge now. (If you had two you could swap batteries, if you're handy and can pull up the tear-down guide.)

I wonder if you can "wake it up" by trying to connect to it with Doctor or adb.

I'm thinking you may have to send it to HP tho or sell it on fleeBay for $150 and hope someone thinks you're clueless and they can easily revive it.
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Old May 16th, 2012, 08:29 PM   #17 (permalink)
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Another thread on this issue: HP Touchpad won't turn on (weird indicator light) - HP Touchpad - RootzWiki
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Old May 17th, 2012, 07:09 PM   #18 (permalink)
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I found this interesting: Touchpad won't charge or boot - HP Touchpad - RootzWiki - Page 2

Quote:
Originally Posted by PPossum
As I have been searching this forum and other forums for more info on this issue I came across a few few notable posts and threads thus far.

Over on webos nation there are a few charging troubleshoot options before sending it in or cracking it open that I am going to try over the next week.
http://forums.webosn...t-can-i-do.html


Others crack it open and recharge the battery with an RC car/plane charger or just stop by the local hobbyshop
http://forums.webosn...d-touchpad.html

Step by step instructions to open the TP can be found here:
http://www.ifixit.co...-Battery/6082/1

Concerning HP voiding warranty I have found cases of both yes and no. I did a search of this forum with the word "warranty" and came across posts of both cases.
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Old June 16th, 2012, 07:45 AM   #19 (permalink)
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Exclamation Same issue, this worked for me!!!!!!

Got this solution off another forum and tried it. Worked liked a charm. I was about to throw my tp out the window.

"If you can't pull a charge from the TP wall plug charger, and you know the cheap TP USB cable hasn't gone bad, here is the next thing to try: Go get a standard, low power, USB charger (like for your cellphone, or if need be use your computer's regular USB port). Plug the bugger in on your wimpy little USB cell phone charger and let it trickle charge at that low, 1000mAmp rate for a couple of hours and see what happens. I revived mine doing this, after the TP wall charger did nothing for 14 hours. It appears that if the voltage drops too low, the only way to charge it is using the standard USB voltage and not the higher voltage normally fed out by the TP wall plug or Touchstone. Definitely try this before you go through all the trouble of pulling the thing apart."

I hope this works for you. I just used an htc usb with the htc wall charger. Juiced the tp just enough
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Old June 16th, 2012, 08:26 AM   #20 (permalink)
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This issue has been fixed if you've installed the June 12 CM9 nightly (or later).

Previous behavior: If plugged it into the charger and it turned on, it wouldn't charge.
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Old June 24th, 2012, 12:17 PM   #21 (permalink)
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If your TP is completely dead, the fix is to open it up and charge with an external charger. More here: How I Revived My Dead TouchPad - webOS Nation Forums
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Old June 26th, 2012, 04:33 AM   #22 (permalink)
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Hi guys.

Before sleeping I left the TP on the touchstone to charge and the clock appeared so I knew that touchstone was charging as it should .

Then I turned off the power button and when I woke up the TP was completely dead.
I tried every hard reset combination .....not working. I tried every charging method* for some minutes...not working.
I know that my original charger is working because my HP Pre3 is charging perfectly on connect and I suppose that touchstone is working as TP is getting warm on the back .

My TP is running the cm-9-20120623-NIGHTLY-tenderloin version.

I presume that is a drained problem as resets are not working. Not even the plug mark is appeared...(could it be something else apart energy drain ? )

What should I do ? I am completely lost now....





* car charger, original charger with cable, original charger with touchstone, pre3's charger even if it's not the right voltage.
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Old June 26th, 2012, 08:50 AM   #23 (permalink)
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I had the problem this weekend. It went dead while sitting around idle. When I tried to charge using the stock AC charger it would just flash the charging symbols and not turn on. Eventually I plugged it into a USB port on my PC and let it sit for a couple of hours. It still flashed the symbols and wouldn't turn on.... but then I plugged it into my AC charger again and it turned on and charged up.

It was almost like when completely dead, the AC charger won't trigger a charge, only the USB trickle can get it to a level that will then allow the AC charger to charge.
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Old June 26th, 2012, 09:05 AM   #24 (permalink)
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Tim in my occasion I have not seen any plug mark or anything since it went dead...

And last night I was thinking to turn via cyboot the default choice of Moboot to WebOs in order to avoid such a problem

What do I do now is the problem...
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Old June 29th, 2012, 02:28 PM   #25 (permalink)
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This is the way that revived me so dead TP :

I charged for at least 15 hours the TP with a handsfree mini USB charger at 5v, 0.7mA (instead for the original TP charger of 2mA).

Then I holded the power button and pushed rapidly 15-20 times the home button.
I did the opposite holding the home button and pushed rapidly 15-20 times the power button.

I really do not know which one of these two combinations make the TP wake up.
After two-three minutes after my attempts the plug icon appeared on the screen and I rapidly connected with the original TP charger via cable. Home button was glowing for first time after days.
After half an hour moboot menu appeared and I choosed fast to boot on the webos. That's it !!
It now is charging on webos nice and easy. To be sure that I am not going to live this situation again I choosed to boot on Webos by default instead of ICS through Cyboot.
Till these wonderfull guys stabilize the ICS for the TP use cyboot to avoid such problems.
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Old October 21st, 2012, 08:10 AM   #26 (permalink)
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I didn't have issues with the charger, was always able to get the charge symbol to show up on the tablet. It would never auto boot after sitting for a minute like it usually did.

What I did was let the tablet sit for 5+ minutes with the charging symbol showing.

Then... long press the power button only on top until it shows the boot loader. This worked for me. Now I'm in CM9 and it's up to 3% within a few minutes and doing fine.

HTH someone...
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Old October 21st, 2012, 08:31 AM   #27 (permalink)
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Quote:
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I didn't have issues with the charger, was always able to get the charge symbol to show up on the tablet. It would never auto boot after sitting for a minute like it usually did.

What I did was let the tablet sit for 5+ minutes with the charging symbol showing.

Then... long press the power button only on top until it shows the boot loader. This worked for me. Now I'm in CM9 and it's up to 3% within a few minutes and doing fine.

HTH someone...

You got lucky this time. If you continue to let your battery drain to zero like this you are not only damaging the battery, but one day your TP will refuse to charge up at all. Best practice, never let the battery drain below 20%. At the end of the day regardless of how much the battery is down, recharge it.. At night, or when not using it for as extended period of time, charge it up and then turn it off. That way, you don't accidentally forget about it and find it days later drained and refusing to charge up.
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Old November 22nd, 2012, 03:08 PM   #28 (permalink)
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The same thing happend to me...will not charge with TouchStone or Touchpad charger. Thought the unit was bricked. No matter what button combo, etc..nothing happens!!!!
To fix this, on a hunch I plugged in a Samsung phone charger which for some reason I could see that the app close button on the front of unit immediatey started flashing. After a few minutes, the charging symbol appeared and then it complained it was the wrong type of charger. Immediately, I plugged in the normal charger and voila!! Working again!!!
Can't figure out why this happens, but each time it is because of an accidental and complete discharge. For some reason, the regular charger will not kick start the charging process. This has happened to me twice now.
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Old November 22nd, 2012, 07:44 PM   #29 (permalink)
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Quote:
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The same thing happend to me...will not charge with TouchStone or Touchpad charger. Thought the unit was bricked. No matter what button combo, etc..nothing happens!!!!
To fix this, on a hunch I plugged in a Samsung phone charger which for some reason I could see that the app close button on the front of unit immediatey started flashing. After a few minutes, the charging symbol appeared and then it complained it was the wrong type of charger. Immediately, I plugged in the normal charger and voila!! Working again!!!
Can't figure out why this happens, but each time it is because of an accidental and complete discharge. For some reason, the regular charger will not kick start the charging process. This has happened to me twice now.
STOP letting it discharge down to zero, or next time you may not be as lucky.
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Old November 23rd, 2012, 06:39 AM   #30 (permalink)
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Plus that's really hard on your battery.
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Old November 23rd, 2012, 04:55 PM   #31 (permalink)
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Quote:
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Plus that's really hard on your battery.
Thank you, I forgot to mention that part too.
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Old November 24th, 2012, 11:04 AM   #32 (permalink)
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I got your back.
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Old April 8th, 2013, 01:04 PM   #33 (permalink)
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Default humidity may be one culprit

Hi everybody. I think I may have one of the reasons why this happens. Mine is HP 32gb, with the newest cyanogenmod android on it, which should not matter, but just fyi. I live in a humid city and every year like clockwork when the weather turns humid, this thing doesn't charge, no matter how long I leave it on the wireless or usb charging cable. This year, same thing. I have left it for over a week and now it boots within 5 minutes of using usb cable with original charger. g/luck!
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Old April 8th, 2013, 07:26 PM   #34 (permalink)
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Quote:
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Hi everybody. I think I may have one of the reasons why this happens. Mine is HP 32gb, with the newest cyanogenmod android on it, which should not matter, but just fyi. I live in a humid city and every year like clockwork when the weather turns humid, this thing doesn't charge, no matter how long I leave it on the wireless or usb charging cable. This year, same thing. I have left it for over a week and now it boots within 5 minutes of using usb cable with original charger. g/luck!
You should try packing it is some desiccant for a few days to dry it out. Maybe even keep it there when not using it. Just a thought.
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Old May 2nd, 2013, 11:21 AM   #35 (permalink)
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One thing I would add. I left my TP in the latest CM9 to charge and when I came back it was at a black screen and would not wake. I did the home + power and it came back up.

But here is the thing. I held it for 2 minutes before the HP logo finally showed. I timed it. Most people when you tell them to hold a button for a minute will say they have, when in reality they didn't even come close. I have timed people I am trying to help and they never even come close. Most of the time we are stressed when we come down to a hard reset and feel like we have been holding that button combo forevr when in actuality it's just a few second.

I always suggest you keep your watch or a clock handy and time it. 9 out of ten times it can make the difference between getting a device back up or more frustration and time wasted n a "bricked" device. I'm not saying that 2 minutes is the magic number, some people have said it took them as much as 5 but timing it can provide a tool to focus on and maybe get your tab back up and running sooner.
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Old May 2nd, 2013, 07:45 PM   #36 (permalink)
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One thing I would add. I left my TP in the latest CM9 to charge and when I came back it was at a black screen and would not wake. I did the home + power and it came back up.

But here is the thing. I held it for 2 minutes before the HP logo finally showed. I timed it. Most people when you tell them to hold a button for a minute will say they have, when in reality they didn't even come close. I have timed people I am trying to help and they never even come close. Most of the time we are stressed when we come down to a hard reset and feel like we have been holding that button combo forevr when in actuality it's just a few second.

I always suggest you keep your watch or a clock handy and time it. 9 out of ten times it can make the difference between getting a device back up or more frustration and time wasted n a "bricked" device. I'm not saying that 2 minutes is the magic number, some people have said it took them as much as 5 but timing it can provide a tool to focus on and maybe get your tab back up and running sooner.
A normal forced reboot(power + home) should not take more than 30 seconds, but your are correct, holding it longer may be required. You may want to go visit this thread:

[ROM] [04/18] How to install jcsullins CM10 Unofficial Preview Builds Edited 5/1/13 - HP Touchpad - RootzWiki

and scroll down to the troubleshooting section and read the A6 firmware fix. It might help. I even posted about it in this forum a few days ago here:

New Procedure for Protecting Your TouchPad, Flash your A6 Chip Firmware

You also might want to read the first post in this thread: Reading this may save you from bricking your TouchPad!
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Old May 2nd, 2013, 08:23 PM   #37 (permalink)
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Quote:
Originally Posted by Nevertells View Post
A normal forced reboot(power + home) should not take more than 30 seconds, but your are correct, holding it longer may be required. You may want to go visit this thread:

[ROM] [04/18] How to install jcsullins CM10 Unofficial Preview Builds Edited 5/1/13 - HP Touchpad - RootzWiki

and scroll down to the troubleshooting section and read the A6 firmware fix. It might help. I even posted about it in this forum a few days ago here:

New Procedure for Protecting Your TouchPad, Flash your A6 Chip Firmware

You also might want to read the first post in this thread: Reading this may save you from bricking your TouchPad!
Because I got my Touchpad used I ran the A6 firmware flash as one of the first things. I have very little drain when sleeping and I don't think that had anything to do with why it locked up. It was at 100% charge when it did boot. It cold be I had just changed kernels before charging, the overclock was set to 1.9 high and low because I was testing battery drain @ max settings.

I had dropped everything back to normal before charging but who knows. I was just pointing out when people do various buttom combos sto reset or restart any device they tend to think they have held it forever when they haven't held it but a few seconds so actually timing it helps. I agree a normal reset should take less than a minute.
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Old May 3rd, 2013, 09:22 AM   #38 (permalink)
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Hey Rabid1. I agree. Sometimes you just have to hold those buttons down forever before you get any response. Same thing applies when flashing or upgrading. Patience is a virtue. Don't start unplugging smashing buttons and giving the thing the heimlich maneuver if you're staring at a black screen longer than you think you should. These things often seem to take longer than described. Walk away, go get drunk, walk the dog, bake a cake Whatever.

I find even when powering up some times it boots up in a few seconds. Sometimes it seems to take a minute before I see any response on the screen..
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Old May 3rd, 2013, 02:54 PM   #39 (permalink)
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Quote:
Originally Posted by johna2u View Post
Hey Rabid1. I agree. Sometimes you just have to hold those buttons down forever before you get any response. Same thing applies when flashing or upgrading. Patience is a virtue. Don't start unplugging smashing buttons and giving the thing the heimlich maneuver if you're staring at a black screen longer than you think you should. These things often seem to take longer than described. Walk away, go get drunk, walk the dog, bake a cake Whatever.

I find even when powering up some times it boots up in a few seconds. Sometimes it seems to take a minute before I see any response on the screen..
Have you read this? Reading this may save you from bricking your TouchPad!
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Old May 3rd, 2013, 03:17 PM   #40 (permalink)
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Yep and it's a good tip. I have been using the home button to wake from sleep. Still need to use the power button to power on and off though.
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Old May 3rd, 2013, 06:32 PM   #41 (permalink)
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[QUOTE=johna2u;5793643These things often seem to take longer than described. Walk away, go get drunk, walk the dog, bake a cake Whatever.
[/QUOTE]


LOL About three weeks back I had a guy send me his Dragon touch 9.7 because he couldn't get my ROM to flash. He swore up and down he did everything right, was very gentle with the tablet. In the back case there was a small indentation and it was right where your index finger would be if you were holding the tablet sideways to push in the USB plug. I was surprised there wasn't a crack in the screen on the opposite side.

We get impatient and it is proof that time is relative.
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Old May 3rd, 2013, 07:34 PM   #42 (permalink)
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My wife complained that the touchpad on her laptop didn't work the first time and she had to tap it repeatedly.

One day she tapped it so hard the touchpad broke off and fell down inside the tablet about 1/4". She is not a big woman.

I still don't know why she wasn't using a mouse instead.
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Old May 30th, 2013, 10:58 PM   #43 (permalink)
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Same problem. I went on vacation and came back to a died TouchPad. It looks to be charging as the blue light scrolls across the bottom, However when i reboot I get a Battery indicator with a ? in the middle. Any ideas what this icon means?
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Old May 31st, 2013, 06:31 AM   #44 (permalink)
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Is your cable in good condition? Is it the original cable with the silver disk on the tablet end?

A lot of people wreck there's by folding it under their tablet so it makes a sharp 180 bend.
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Old May 31st, 2013, 12:53 PM   #45 (permalink)
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I would try a different cable if you have one first. the stock cable on the personal edition Touchpads was just slightly above terrible. Then check the top of he barel on the charges, sometimes they do come loos. Just give it a little turn to the right to make sure it is locked in. If you have access to a Touchstone that can tell you if the charger itself is bad. If that doesn't work try forcing your Touchpad into recovery and running WebOS Doctor.

Here is a simple tutorial for WebOS Doctor.


To force recovery on the Touchpad hold power and volume until you see the USB symbol appear. It can take anywhere fro 30 seconds to 2 minutes for it to show.

BTW, It wasn't plugged into a charger the entire time you were gone was it?
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