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  1. #1
    Soundwave
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    Infinity TF700T Suddenly Dying (Shutting Off) For No Reason

    JA couple of weeks ago while on a flight my tablet suddenly powered down. It just completely died as if the battery was completely dead, and wouldn't turn back on. The power button was completely unresponsive. I thought this was a little odd since the battery was fully charged before I got on the plane and I had only been using it for two hours or so. I had the Asus dock, attached which has another batter so I should have been able to get at least 6-8 hours of battery life.

    Fortunately, there were power outlets at the seats so I plugged in the tablet. Once it had powered up I discovered that there was still 91% on the dock battery and 95% on the tablet battery. I thought this was odd but didn't think much more about it.

    It then happened two more times.

    The last time was on a connecting flight that didn't have power outlets. The tablet wouldn't turn on at all. Again it was as if the batteries were completely dead. Nothing would happen when I pressed the power button.

    When I got home I was tired and forgot to plug in the tablet. Then next morning when I plugged the tablet I was able to turn it on right away. It has been more than 18 hours since the tablet suddenly turned off the day day before, so the battery should have been supper low. Instead the dock battery is showing 29% and the tablet battery 87%.

    The tablet is acting as if the battery is dead, when in fact it isn't. It suddenly powers down and won't turn back on until you plug it in. As soon as it is plugged in, I can turn it back on, and can be
    immediately unplugged and used for several hours so clearly it isn't a battery problem.

    Since this started happening two weeks ago it has only gotten worse. I can't get more than about 20-30 use before it dies. It's basically useless if it isn't connected to a power source.

    I haven't installed any new software or made any changes in the last several months. I've tried a cold reboot / hard reset, with the dock attached and that didn't do anything.

    Can anyone offer any suggestions?

    Thanks,
    CG

    Sent from my ASUS Transformer Pad TF700T using Tapatalk
    Last edited by george514; 04-13-2014 at 11:02 AM.

  2. #2
    Jazz
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    It sounds like your battery is going bad.

    Remember the dock battery doesn't kick in until the tablet goes below 70%. So if your battery has a problem and reports higher than that and fails when it reads 95% the dock battery won't help.

    Based on what you have described, I think a service trip is your only path.
    Samsung Galaxy Player 5.0 (KitKat 4.4)
    Ex-Archos 70IT 8GB (Froyo)
    Ex-Transformer Pad Prime 32GB Grey (ICS, S/N BCxxxxxxxxx)
    Transformer Pad Infinity 32GB Grey (JB, S/N C7xxxxxxxxx)
    Transformer Pad Dock AD01 Grey (FW: DOCK-EC21N-105, S/N CAxxxxxxxxx)

  3. #3
    Soundwave
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    Quote Originally Posted by Ate_Bit View Post
    It sounds like your battery is going bad.

    Remember the dock battery doesn't kick in until the tablet goes below 70%. So if your battery has a problem and reports higher than that and fails when it reads 95% the dock battery won't help.

    Based on what you have described, I think a service trip is your only path.
    Unfortunately, my warranty was up in December 2013.

    Any other things I can try?

    Sent from my ASUS Transformer Pad TF700T using Tapatalk

  4. #4
    Chief Customizer & Super Moderator
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    Quote Originally Posted by george514 View Post
    Unfortunately, my warranty was up in December 2013.

    Any other things I can try?

    Sent from my ASUS Transformer Pad TF700T using Tapatalk
    If your problem is hardware related only replacing the battery would help. But it would be a strange coincidence that both batteries go bad at the same time.....
    I assume you're not rooted?

    Couple of things you can try:
    Disconnect from the dock. Drain the tablet battery to or close to 0%.
    Connect the tablet via original USB cable to a USB port on your computer, make sure the PC does not go into sleep mode and leave it overnight. It will not even show any charging indication, but it should trickle charge through USB.
    Sometimes this seems to recalibrate the battery (and I do suspect something software related here).

    If that does not help, I would reflash the Asus stock firmware.

  5. #5
    Soundwave
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    No I'm not rooted. Don't even know how to do that.

    If it is hardware I think it it with the tablet battery, not the dock. I've tried restoring to factory default but that hasn't helped.

    I'll try removing the keyboard and see if I can discharge the tablet's internal battery and report back.

    Thanks for the help.


    Sent from my ASUS Transformer Pad TF700T using Tapatalk

  6. #6
    Super Moderator
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    Quote Originally Posted by george514 View Post
    No I'm not rooted. Don't even know how to do that.

    If it is hardware I think it it with the tablet battery, not the dock. I've tried restoring to factory default but that hasn't helped.

    I'll try removing the keyboard and see if I can discharge the tablet's internal battery and report back.

    Thanks for the help.


    Sent from my ASUS Transformer Pad TF700T using Tapatalk
    A couple of things to add to the most excellent advice above...when your tablet shuts its self off...after you drain the battery...turn it back on if you can..and leave it to drain some more. They turn themselves off before fully discharged.

    When you connect it to your PC..if that is the route you go, your PC has to be on and not go into sleep mode to facilitate the charge.

  7. #7
    Chief Customizer & Super Moderator
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    Quote Originally Posted by george514 View Post
    No I'm not rooted. Don't even know how to do that.

    If it is hardware I think it it with the tablet battery, not the dock. I've tried restoring to factory default but that hasn't helped.

    I'll try removing the keyboard and see if I can discharge the tablet's internal battery and report back.

    Thanks for the help.


    Sent from my ASUS Transformer Pad TF700T using Tapatalk
    Restoring to factory default only wipes your /data partition. It wipes all user added apps and settings, but does not touch the /system partition.
    If something on your /system partition got corrupted (and one sudden shutdown or crash could do it) causing it to misread the battery status, only restoring the complete firmware would correct this problem.
    If the discharge/trickle charge does not help, we can talk you through reflashing the stock firmware. It's not that difficult to do and quite safe.
    If that doesn't do it, I would bet on hardware failure - which would be more involved to fix on your own...
    Let's see..

  8. #8
    Soundwave
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    Quote Originally Posted by droidbound View Post
    Disconnect from the dock. Drain the tablet battery to or close to 0%.
    Tried this last night. With the dock unplugged the tablet shut down in less than an hour. When I tried to turn it back on, it would only get the the Asus splash logo before turning off again. I had to plug it in to get it to turn on all the way to the home screen.

    When it did get to the home screen it showed that the battery was 100%.

    So what's the next step? Would it be the trickle charge, by plugging it into the usb? Or re-installing the firmware?

    Thanks,
    G

    Sent from my ASUS Transformer Pad TF700T using Tapatalk

  9. #9
    Chief Customizer & Super Moderator
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    Quote Originally Posted by george514 View Post
    Tried this last night. With the dock unplugged the tablet shut down in less than an hour. When I tried to turn it back on, it would only get the the Asus splash logo before turning off again. I had to plug it in to get it to turn on all the way to the home screen.

    When it did get to the home screen it showed that the battery was 100%.

    So what's the next step? Would it be the trickle charge, by plugging it into the usb? Or re-installing the firmware?

    Thanks,
    G

    Sent from my ASUS Transformer Pad TF700T using Tapatalk
    I would try the trickle charge first - less hassle
    But give it at least 4 hours, better 8.
    At least we confirmed that your battery calibration is seriously messed up.

  10. #10
    Soundwave
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    Quote Originally Posted by droidbound View Post
    I would try the trickle charge first - less hassle
    But give it at least 4 hours, better 8.
    At least we confirmed that your battery calibration is seriously messed up.
    I'll try that tonight and report back.

    Do I trickle charge with the dock on or off?

    G

    Sent from my ASUS Transformer Pad TF700T using Tapatalk

 

 
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