[Q]Strange tablet battery issue - General Questions and Answers

Hi
So I have a spinoff of the AllWinner A10 tablet and I recently ran into a strange issue. After playing for an hour the battery was still 100%.
However later while playing the tablet just switched off. I plugged it in, thinking battery was dead and it started. But it's still showing 100%. Apparently the system isn't getting the right battery status.
Any ideas?

Bump. This is killing me

Hello,
I have 7" A15 LDK MID tablet.
interesting I have the same issue with my tablet.
It just turns off with no warning (no shutting down message) at all at 20-23%.
I'm also trying to figure out why it is happening. My friend tells me that it cause is ICS 4.0.3 and he has same problem on his mobile phone.
Till now (i have it for 7 days) I was hoping it will get stable with multiply charges but no effect.
Tommorrow I'm taking it to service. I left around 27% of battery to see immediately what is happening.
I hope that it is a battery issue so I'll get a new one with correct battery. Else I'll be forced to get another type of tablet and be dissapointed because I was sugested by a guy who imported these tablets that are very good.
I doubt....
Anyway, read you in a couple of days to tell you what happened.

janeku said:
Hello,
I have 7" A15 LDK MID tablet.
interesting I have the same issue with my tablet.
It just turns off with no warning (no shutting down message) at all at 20-23%.
I'm also trying to figure out why it is happening. My friend tells me that it cause is ICS 4.0.3 and he has same problem on his mobile phone.
Till now (i have it for 7 days) I was hoping it will get stable with multiply charges but no effect.
Tommorrow I'm taking it to service. I left around 27% of battery to see immediately what is happening.
I hope that it is a battery issue so I'll get a new one with correct battery. Else I'll be forced to get another type of tablet and be dissapointed because I was sugested by a guy who imported these tablets that are very good.
I doubt....
Anyway, read you in a couple of days to tell you what happened.
Click to expand...
Click to collapse
Thanks mate.
I just wiped battery stats from cwm and charged to 100 then rewiped and recharged to 100.
It's working for now

Related

[Q] WTF is going on with my TF101?

So I got my TF101 from MacMall on the eBay deal of the day yesterday and out of the box put it on the adapter. Once it was charged past 50% I ran the 3.2 update which completed without issues. Then I let it continue charging to 100% and took it off the charger and played with it briefly. Put it back in the box and carried it around for the rest of the day waiting to have a chance to use it/play with it but client needs came first. Get home that night (~6 hours since I removed it from the charger) and nothing. Black screen with nothing displayed in response to very long press of power button. Vol + and power = nothing. Figure that the battery is dead (crappy) and I will have to wait until the office in the morning to charge it since I left the block and cable there. Get to office this morning and put it on the charger and nothing still - no light to show charging and device does not turn on. Call ASUS support and after getting relative details and discussing situation it turns on fine for me (after I had tried for 15+ minutes) after disconnecting from charging block. I put it down to weirdness and move on. Now at home fully charged it is doing the same crap.
Any ideas?
Thanks!
Since updating to 3.2 my battery life is really bad too... Used to get a couple of days out of the tab and dock with frequent use... now it lasts maybe a day with barley any use.
You're experiencing the Sleep of Death.
brando56894 said:
You're experiencing the Sleep of Death.
Click to expand...
Click to collapse
Hi brando56894, do you know if this "sleep of death" is a problem with the 3.2 update? The post's in this thread are from members with new vanilla 3.1 Transformers.
My Transformer will arrive in a few days, I just want to avoid any pitfalls because the Transformer is a gift for my girlfriend. She is not a techie, and I would like her to love and use this ANDROID beauty.
Many thanks, Anil.
brando56894 said:
You're experiencing the Sleep of Death.
Click to expand...
Click to collapse
OK - thanks for the identification of the problem and a thread on what is being done to research/resolve.

P6810 suddenly won't turn on

Anyone come across this? I put it on standby last night after reading a bit of my book on it, and it had around 50% power remaining. This morning, it was totally unresponsive; pressing the power button does nothing at all. I've charged it for 12 hours in the meantime.
I've done the following all with and without the power attached:
- Pressed and held power for 15 seconds through to a minute
- Pressed and held volume up with power to attempt to get into recovery for up to a minute
- Pressed and held volume down with powerfor up to a minute
- Pressed and held power while touching screen (read that one off another forum)
I guess potentially it could be on and in a crashed state and unresponsive to the power, so maybe in a weeks time when it runs out of juice, I'll be able to charge it and power it back up, but in the meantime, I'd welcome suggestions.
A few weeks ago I updated it to the official ICS build that was released, but did the update myself rather than using KIES, as KIES didn't even recognise my Tab's firmware original version. It's been absolutely fine before the update, and since. I only mention it because I've read about the Samsung build of ICS being prone to self bricking itself, but I couldn't determine what the symptoms of this vulnerability were.
Thanks for any help offered,
Will
did you try connecting USB cable and plugging it into your PC? did u get any activity? can ADB recognize your tab?
I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium
Had the same problem while on holidays. Once the battery goes below a certain level, you won't be able to charge it through USB any more. Instead you need to use the wall charger.
I think it's bad enough that the 7.7 doesn't have a micro USB port, but things like that are just stupid and Samsung made a big mistake here. It don't think it's the same with the newer tablets though. It's also not possible to just buy cables or chargers for this strange Samsung port, so when you forget your wall charger at home at some point you won't be able to use your tablet any more.
As long as you charge with the USB cable early enough, you can avoid it though.
A few months ago I experienced the same thing, the Tab just wouldn't turn on anymore.
I tried all there is without any luck.
Contacted amazon and they replaced it with a new one in less than 48 hours.
So far not Problems with the new device.
I have the P6800 and this morning I took it off charge. Put it into standby and only used it for about 20 mins then left in standby all day. It had about 95% remaining when I did so.
Picked it up this evening and the lower left area of the screen was warm and it would not switch on. Didn't think of the ADB idea but will try this next time but I had to reset it and when it powered on tonight after the reset, it was down to 15%. Within about 2 mins of checking stuff it was down to 3%.
Something is running when it is in standby but as I can't switch it on I can't check with BetterBatteryStats or CPUState to know what is wrong.
It does this every day. I am tempted to do a factory reset and reinstall only limited software.
Dave...
I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.
Cluey said:
I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.
Click to expand...
Click to collapse
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal
TeeeJaay said:
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal
Click to expand...
Click to collapse
hhmmm, interesting.
I was having trouble with wifi just before this happened. Both my GS2 and this have been claiming to connect to my wifi but aren't actually getting an IP address from it.
I can't remember if it was last night or the night before but I manually set an IP address, the signal strength is fine as my abode isn't very big.
After it has recharged I'll have a poke and see what I can find, thanks for the reply.
So my device seems to be working fine again. It had gone SO flat that the date and time were incorrect!
After I could power it on I had a look at Better Battery Stats and nothing looked wrong so I have no idea what happened. None of the apps I'd installed the day before it played up had long wakelocks and weren't running when I turned it off.
For reference they were:
My Tracks
MyTrails
Google Earth
AndSMB
I'd turned both of the GPS tracking devices off before I turned it off for the night.
It hasn't played up since but it hasn't been long so I'll see what happens.
Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.
A similar thing happens to me every once in awhile. The way i check to make sure everything alright is to see if it boots into download mode. I just leave it plugged in for a couple hours and it eventually comes back on.
someth1ng said:
Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.
Click to expand...
Click to collapse
this is why my 7.7 is the last tablet/phone from Samsung i'll never trust them they are just bombarding the market with new devices and leaving the old ones to dust
^thats what I thought too but that gs4 is really tempting. I've heard worse about HTC in that regard anyways so that why I'm not going with the one.
Finally.. i bought Sony xperia Z.
I'll sell my galaxy tab 7.7. I.m very disappointed with samsung.
Sent From XPERIA Z
kishd said:
I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium
Click to expand...
Click to collapse
Unbelievable! ... this trick still works ... thank you very much for you help ...
^^ yo, this 'trickle charge' trick did NOT work on my (long) dead P6800... any other suggestions??
Quite strange because my Samsung GT-P6800 tablet was fully charged, it went completely blank dark as if it was off. To my amazement, SMS keeps dropping and calls kept coming in. Yet it is still as blank as though the tab was off. I pressed the power button and the volume up bottom for it to reboot. It rebooted without the screen coming up. It has been blank for two days now. What could be the cause? And what possible solution can be given?

[Q] TF700 completely dead and unresponsive

HI guys,
So I'm posting this as a vain last resort hoping that someone has had an issue like this before (and resolved it..)
I've had a tf700 for 6 months now. Never had any major issues with it hardware-wise.
About a month ago I got tired of waiting on Asus to update the firmware (and do something about the dreaded lag) so I unlocked and started using CM10.1 nightlies. Everything was vastly sweeter!
Yesterday, tablet was around 50% charge so I plugged it in for the train ride home. 10 minutes later I went to unlock it and ...nothing..nada...zip.
I figured it had locked up so I tried a soft reset. Then i noticed there was no indicator light even though it was plugged in.
Cue an increasingly desperate sequence of trying ever reset option I could find:
Power for 10, 20, 30, 60 secs... nothing.
Power + down vol... nothing.
Power + up vol... nothing.
Pinhole Reset button... nothing.
Plugged into pc ... nothing (not detected by PC)
Checked the charger was working on the dock ... all OK there.
Tried docking the tablet .. no effect.
Tried charging through the dock ... nothing.
Tried leaving it plugged in overnight... nothing.
Basically, there is no sign of life at all (including charging indicator light).
I'm presuming I'll have to go down the RMA route but thought I'd throw it out there for opinions / suggestions.
Thanks
Orko
Ouch.
When not even the charging light comes up... I think you indeed have an RMA to call in. I'm sorry for your loss.
Today I also have the same problem.
On the train on my way to my work i read my newspaper on my tablet, put it of to go to my work, 10 minutes later when I push the power to put it on, NOTHING.
Long press, even everything listed above, nothing happens even no charging led.
I have put cleanrom on the tablet and that worked fine, no more lag much faster, nog random reboots, but now I don't have any warrenty because it is unlocked.
I am really dissapointed now, buying a new one without unlocking is really no option because the standaard TF700 is way too slow.
700 euro waisted...
http://forum.xda-developers.com/images/icons/icon9.gif
Had you both used an overclocked kernel? Which kernel was in use anyway?
MartyHulskemper said:
Had you both used an overclocked kernel? Which kernel was in use anyway?
Click to expand...
Click to collapse
Hadn't messed with the stock kernel ... think the firmware was 10.4.4.23
Had you both plugged them in to charge on the train? Could the cause be dirty power frying something in the tablet?
Sent from my SCH-I535 using Tapatalk 2 Beta-5
carteje said:
Had you both plugged them in to charge on the train? Could the cause be dirty power frying something in the tablet?
Sent from my SCH-I535 using Tapatalk 2 Beta-5
Click to expand...
Click to collapse
Mine was in my office..... Plugged in to a surge protector for good measure.
I see some painful (and expensive) RMA action in my future
This just happened to me as well. I plugged it in last night, and when I went to use it today... nothing. Completely unresponsive, no charging light indicator or anything. Though mine was completely stock, still locked and un-rooted.
Funny that earlier this morning, I had a crack;ing sound from my unit as well, and it acted up afterward. I ascribed it to fooling around with H's kernel too enthusiastically -- I sincere hope we haven't gotten an epidemic of fried Infinities on our hands. The digital equivalent of the zombie apocalypse. :S
Wow another user pm'ed me yesterday with the exact same issue. Unit just died. No power to boot.
How can 4 people all suffer the same problem in one day???? :silly:
sbdags said:
Wow another user pm'ed me yesterday with the exact same issue. Unit just died. No power to boot.
How can 4 people all suffer the same problem in one day???? :silly:
Click to expand...
Click to collapse
Mine went into a bootloop. I struggled to get out of it, because most of my files reside on the microSD and not on internal storage (some older files and backups live there). I was on data2sd initally, but decided to flash normally to determine the problem (suspecting a damaged partition on the microSD) -- the moment I removed the microSD card, the unit would boot fine, but after inserting it again, bootloop. I only saw the very first ASUS logo, before the revolving circle comes up, for just a few seconds, and reboot -- rinsed and repeated that sequence a few times while I was recovering my jaw from the floor. Whenever I flashed the data2sd mod for CROMI, I was screwed, obviously. I have flashed over a dozen times -- one of the definitions of clinical insanity is repeating behaviour while expecting a different outcome every time. You go figure. Fortunately, it was only temporary (at least, I'd like to think so, thank you!).
In the end, I ended up keeping a normal and perfectly functional install, for I still had the 2.5h commute to home from the night shift -- yes, this was towards the end of a night shift :S -- so I could at least read for a bit.
After fomatting everything yet again -- including giving the microSD a digital meltdown with gParted -- I finally got it working again, although I lost nearly all new data since the last backup. Those were mostly pictures from Reddit (earthp*rn, anyone?) and some TED talks, so while extremely annoying, it's not like I have lost pictures of my children or something...
Whew... It sure was an exciting day. Off to sleep now. G'night, people!
wtf? that is strange indeed. I thought it was just a bad power source but the surge protector post threw me off. that sucks, if there is a digital ghost running around which I wouldnt doubt, better keep your tabs protected. I also have heard my tablet crack and pop a coulpe of times since havig flashed multiple roms and kernels on it but nothing with the on mechanism breaking. maybe try going to one of those electronic fixer upper places nd see if they can open it up and see what components got fried
*Caution with the overclocking to everyone that's trying it.
Download and install an app that keeps an eye on processor temps.
My tablet runs hot OC'ed so I got in the habit of watching out for extremes.
Wel,
My kernel is TF700: Clemsyn 1.5 - 1.8ghz 650GPU Kernel and I use it always on 1.5ghz.
when It happened it was not connected to a charger, I just put it of on the train and tried to put it on 10 minutes later.
I don't do anything special with my tablet, just reading pdf, newspaper, foto's mail and facebook.
I always put it in a pretective sleeve, I always handle it with care.
And now just SUDDEN DEATH the only way I can call it, because I did not do anything special.
I would like to remove the battery, I kinow for smartphones when nothing happens then a removal of the battery helps. But can't do that here.
:crying:
Is there no way you can make the battery empty so it will do a reset ?
where can you find the serial number on the tablet
Zuran said:
where can you find the serial number on the tablet
Click to expand...
Click to collapse
On the sticker near the charging port that says "S/N:".
TF700 dead
I have the same problem. My infinity is unlocked so the warranty is void. One day it just turned off. It will not charge. No charge light. I've tried everything listed here but nothing. I tried a new charge cable, nothing. I even replaced the battery, still nothing. Disappointing for sure. I guess I'll keep it around until someone finds a cure. I'm gonna have to replace it, but definitely not anything else Asus.
My Infinity died too. After unlocking and rooting, I flashed the cleanrom with the 1,8ghz kernel. Everything was fine when I booted for the first time. Used the balanced profile to start with, but since the device felt very laggy and slow, I tried the normal profile. Didn't help, so I tried rebooting it with the new reboot menu I got on the powerbutton. Then the Infinity died. No charging light, no nothing. I ran it for about 10 min on the balanced, and like 5 min on the normal profile.
Mine died with about 30% battery. I clicked a notification and it went black. No charging light. No USB sound from PC when connected. No vibrate. Nothing. Was about 4 days from bestbuy return window closing. Returned no problem.
It was rooted and running stock kernal and had only been on for a few minutes.
Sent from my HTC PH39100 using xda app-developers app
It seems it is happening to people who run the overclocked kernal. So I will probably stay away from all oc kernals over reading this thread because I once had it on my tf700 but will never again. Sorry you guys lost your tablets
Sent from my ASUS Transformer Pad TF700T Infinity using Tapatalk HD
Rom: CleanRom 3.4.4

[Q] Sudden shutdown

I've had my transformer for quite awhile now and never had any problems with it.
But after installing android 4.2 (stock) I got shutdowns, this didnt happen imedietly after installing 4.2 but after a while.
Now I've found out that the shutdown happens when the battery has 41% left, I've tested it 4 times so far and everytime it shutted down when it hitted the 41%
I only have to recharge the tablet a bit to get it working again.
I havn't been using my tablet different since 4.2 and I really don't see why this is happening, and the tablet works fines as long that it doesn't get to 41%
I've been looking for a selution for my problem but havn't found one yet, as a matter of fact I didn't find any topic about this problem.
My tablet is running 4.2 stock and is not rooted.
I hope someone can help me solve this because it's getting really annoying :s
Thx
Edit: the tablet now shuts down on 55% battery left instead of 41% , this is not looking well and i hope someone has an solution for it because it is really annoying >.<
solved
I managed to solve the problem!
For other people who have this problem: use your tablet until it shuts down, than put in the charger it will go on and when it is turn it off again, than charge for a minimum of 8 hours and your tablet is good to go!

Nexus 5 camera shutdown (won't boot up)

My issue is that when I take a photo on my Nexus 5 and it is under around 60% of battery it shuts down, the screen just goes black (phone is complexly off and dead) and the device will not respond to ANY input until it is plugged into a power source, then it will boot up and function normally. This issue occurred about two weeks after I installed Android 5 however I do not believe it is related due to factory resets, different roms and the issue is still persisting. When the problem started I had recently (a week or so before) moved to Germany, my initial thoughts were that the battery was the problem as when it first happened the phone rebooted and only had 5% left even though the device had around 50% before I took the photo, from then on the battery life was terrible so I purchased a new battery and installed it. The battery problem was solved (battery life was normal) and when the phone crashed it didn't boot up with any difference to the percentage of battery that was remaining. I am now thinking that something to do with the change in power supplies damaged the device. I think this is unlikely though as Australia (where I am from) and Germany (where I was when the issue started) both run on 240V, the stock power adapter was used just with a euro adapter. I have tried to collect logcats however I can't see any errors before it cuts off (I'm no dev by any means so I could be missing something)
Last thing is that this issue NEVER occurs when the device is charging so I'm thinking that it is a hardware problem. And of course the phone is out of warranty.
Any help or light on this occurrence would be amazing.
Try with some custom camera apps on play store, If that didn't work then i think the problem is with regard to hardware.
Let me know if that worked.
artistavi said:
Try with some custom camera apps on play store, If that didn't work then i think the problem is with regard to hardware.
Let me know if that worked.
Click to expand...
Click to collapse
It didn't seem to help, It also crashes when running Geek Bench 3 so I am thinking that it may be a CPU problem (CPU gets ramped up when taking photos) So I'm not sure what to do, it's beginning to be a major issue. Thanks for your help though.
I also have the exact same problem, I believe it started a while ago. The only thing that seems to help for me is to plug it in as well.. Any news regarding the issue?
How's the motherboard? Is it fried/damaged?
dicecuber said:
How's the motherboard? Is it fried/damaged?
Click to expand...
Click to collapse
It sure doesn't look that way. And it doesn't happen every time. I also kind of got the feeling that it happens when the battery is kind of low.. (Like below 60% or so, at least the last time it was 52)
:/
dicecuber said:
How's the motherboard? Is it fried/damaged?
Click to expand...
Click to collapse
smaaland said:
It sure doesn't look that way. And it doesn't happen every time. I also kind of got the feeling that it happens when the battery is kind of low.. (Like below 60% or so, at least the last time it was 52)
Click to expand...
Click to collapse
My motherboard seems fine. And it also only happens to me when it is below around 60%
@AndroidAndroid88
Did you try fastboot flash system system.img?
Yes I did, I have tried different versions of android from googles factory image page and nothing seems to have helped :/
Does anyone know if the new Android 5.1 update resolves the issue? There's no OTA just yet, but the factory images have been published.
Same issue with my Nexus 5
smaaland said:
Does anyone know if the new Android 5.1 update resolves the issue? There's no OTA just yet, but the factory images have been published.
Click to expand...
Click to collapse
I ran into the same issue with my N5. It started happening for me when I flashed to version 5.1 (factory image).
same problem here
I have the same problem. It is worst since I replaced the battery some days ago, and actually it just happened again while I was trying to reply to this thread, not using the camera (but it's the first time it happens while not taking pictures).
Anybody got some new info? I'm on 5.1, btw.
i am trying to fix my friends phone. she has a nexus 5, and as the battery was only lasting 8 hours, she decided to buy a new battery and replace it.
since the replacement, the phone shuts off randomly, once she takes a picture.
it can only be powered back on, if it is plugged into a charger.
now we changed the original LG battery into the phone, but since 7 days there is not one reboot with the original battery.
she did buy 2 "original" batteries from ebay, and the polar battery with 2450a but all 3 batteries have the same issue.
as the original LG battery has no issues, i suspect that the non-original fake china copies sold on ebay and amazon have a problem.
now she has ordered the original battery from LG directly, and once that one is tested i will post a comment again.
cheers thomas
I also have the problem (using Polarcell Akku for my Nexus 5).
Switched back to the original Battery: Problem solved.
Gesendet von meinem Androiden mit Tapatalk Pro
I'll swap the original battery in
I'll update you on what happens
Found the issue
So it looks like that was the issue, the old battery has its own problems but the issue with it shutting down when the phone was under load has stopped.
Anyone know where I can get a genuine battery in Australia?
confirmed new original/genuine bateries have the same problem. Tested with Lg direct supply battery, pollarcell 2450 battery, eBay battery (seems exactly the same as original LG supply, so i believe is it genuine too).
i think the problem isn't the battery at all, the phone is also eating more power, then under high load conditions and low battery charge (no really need to be low) adding the flashligh comsumption discharges all the capacitors on the main power line and the phone hangs.
a rare thing makes the original unbranded battery wich came with the phone to work well even if battery autonomy is broken. I'll try this weekend to transplant the small ciruit boar of the real original battery of the phone into another of the new ones i have. Maybe the output power regulator itself need to relax a bit to keep the main power line with battery voltage current all the time. And the new ones aren't relaxed...
i'll post again until few tests during this weekend.
That would be awesome but I do believe that in my case it was battery related as I replaced my battery about a week ago and it hasn't happened since, I've tried many many times even when the battery was on 2% and it still didn't crash I bought the replacement on eBay (I believe it's genuine) and everything seems to work correctly. I'll be interested to see your test results though.
I started to have the same exact issue with my Nexus 5 camera and it won't boot until I connect it to a charger. I noticed that when I turn off the flash this issue disappears.
Ahmednn said:
I started to have the same exact issue with my Nexus 5 camera and it won't boot until I connect it to a charger. I noticed that when I turn off the flash this issue disappears.
Click to expand...
Click to collapse
same issue here... anyone has an idea if there some log-files that can be checked in order to see what process can be related to this issue?

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