[Q] Galaxy Tab 10.1 only works on mains power - Galaxy Tab 10.1 Q&A, Help & Troubleshooting

Tab 10.1 wouldn't power up this morning even though I'd had it connected to mains power overnight (approx 12 hours). When I plugged it back into the mains power, the battery indicator on screen showed 100% - it powered up (still on mains) and started working beautifully - but, as soon as I unplugged it from the mains power. Black Screen and no life at all. Tried to power up again - nothing. Plugged back into mains - shows 100% battery life - powers up and works fine. Repeat above as many times as you like but it just wont work on the battery. I've tried:
* Holding down the power but for 10+ seconds - nothing
* Holding down the power but for 30+ seconds - nothing
* Holding down the power while touching the screen with on finger - nothing
* Holding down combinations of the power button and/or the Vol up/Vol down buttons (lots of different sequences as recommended by different forums) - nothing
It wont boot up into bootloader mode or anything....
Mains power = fine
Battery = nothing
It was all working fine yesterday morning and now it's toast!
I have noticed that it only works on mains power - it won't work simply plugged into the PC
Any ideas? 'Coz I've run out.... :crying:

Dial *#*#4636#*#* and under Battery Information, you will know whether the battery is the culprit or not. Battery Health should show Good.
Cheers.
Sent from my GT-P7500 using xda app-developers app

Hmmmm... it's a tablet (Galaxy Tab 10.1) and doesn't have a phone, so I don't have anywhere to dial from...

Sorry for my assumptions! I assumed because I can make calls with mine, that you also could. Anyway mine is the 3G variant of the same 10.1. However, it is rooted which means I do not have the same limitations you have. I make regular calls with it and is currently running on Android 4.3.1.
Cheers.
Sent from my GT-P7500 using xda app-developers app

Definitely sounds like an hardware issue, you can try downloading an battery information application from the play store to see if it reports things like a temperature or voltage. Maybe the battery cable somehow got disconnected and you can repair it by opening up the tablet...

Can you 'over charge' these devices?
I'd had it on charge for a couple of days. That's when I noticed the problem.
It's now been sitting around for about 4-5 days powered off and last night I pushed the power on button and it burst into life with a full power on cycle (so it wasn't sleeping).
But, the date and time had been reset - back to some date in 2004 and 00:00 hrs.
Something seems to have gone 'bump in the night' and brought it back to life.....

priceasaurus said:
Can you 'over charge' these devices?
I'd had it on charge for a couple of days. That's when I noticed the problem.
It's now been sitting around for about 4-5 days powered off and last night I pushed the power on button and it burst into life with a full power on cycle (so it wasn't sleeping).
But, the date and time had been reset - back to some date in 2004 and 00:00 hrs.
Something seems to have gone 'bump in the night' and brought it back to life.....
Click to expand...
Click to collapse
Lucky you! Just set the date and time and have fun!
Cheers.
Sent from my GT-P7500 using xda app-developers app

OK....so it's happened again.... :crying:
Left Tablet on charge, now it won't power up unless it's connected to the mains power.
Last time I had the problem it suddenly recovered (apparently all by itself) and it worked fine for ages. I re-charged the battery quite a few times, but suddenly, it's decided to stop working on the battery again.
In the last month, the battery goes up to 100% and drops down again. I usually recharge the tablet when it's around the 10-15% level. I don't do anything odd or extraordinary....
I don't beat up or drop the tablet, it's well taken care of...
Has anyone ever heard of this before?

Well, I've replaced the battery. Charged it fully and.... no change!
While the Tab is plugged into mains power, it runs like a charm.
As soon as I unplug it from Mains power (with the battery showing 100% full charge), it powers off immediately. No shutdown, just a black screen.
I'm now certain it'll need to go in for repair as something inside has broken, but does anyone have a better understanding than me (not very hard!) of the internals of the Tab and where the problem may lie ???
Cheers

Related

[Q] Power light going *blink* *blink* *LongPause* (Archos 101)

I'm at a bit of a loss here..
Instead of powering on, the battery light goes *blink* *blink* *LongPause* ..
I have a (3 day old) Archos 101 and updated to the most recent software when it I first powered up the device. I probably drained my battery yesterday when I put it in the night stand drawer while Aldiko was trying to import a fresh ePub file..
When I turned it on this morning, it blinked once and stopped. When I plugged in the charger (figuring the battery was drained) the "blink blink longpause" started. Long pressing the power button stops the blinking. If the power is connected, the power light burns, so I figure its charging. If its not on power, the power light doesnt burn. I tried the "Hold + while powering up" to boot into recovery but that doesnt change anything.
The Archos FAQ said something about charging the battery, but its been charging for about 9 hours now and the device still wont turn on.. (Green light still burns continuously while charging, not when disconnected) My XDA forums search didnt turn up any results..
Anyone got a clue what this means, what I can do or whatever? Tnx
Maybe the screen froze. Try resetting it by holding down the power button for ten seconds or so. If you're charging it at the same time, it should boot right back up after the reset is complete.
Sent from my A32
Yes, I tried that :/ That's what I meant by long pressing the power button. It changes the blinking pattern to just the burning power led..
Thanks for the tip though!
Sent from my HTC Magic using XDA App
Give it another shot. Disconnect the plug. Hold down the power button for a little over 10 seconds. I would do like 15 in my head. Wait a few seconds after that and press the power button quickly once. If you get the steady green light just wait. Dont keep pressing it. You should eventually see the Archos splashscreen. I have had this happen on several occassions when the system has been idle for a while with the screen off. Hope it works.
Ok; I did that.
Except that when I push the power button that last time to have it boot up; the power light just flashes once. I didnt touch it to be sure and it doesnt start.
When I plugged in the power supply after that, the *blink blink longpause* resumed.
When I hold down the power btn now, it reverts to continuous burning green power led.
Its been charging for more than 24 hours now.
This sounds like what happened to mine. it happened after about 3 days, too. I finally got my replacement the Tuesday before Christmas.
If you get it powered up, get your stuff off & clean up your personal info (something I wasn't able to do.
From my post on AchosFans Forum:
For several days my Archos wouldn't take a charge. I didn't think anything about it the first day...stuff happens. After using it the next time, not really thinking there was a problem I plugged it in (and of course it turned itself on again). So this morning it only had 8%. I messed around a few minutes before work resetting it & such - checked setting>about>battery stats and it said "charging" and 0% battery. When I came home this evening it still said "charging" & 0% battery. It then shut down (with a not-normal screen flicker) the first time I unplugged it (hoping to cycle it or get lucky) and it is now a brick. When I plug it in now the charging light did a fast-double-blink and it it remained dead.
I called Archos & they told me to send it back. She didn't ask for much info before telling me to send it, which I took to mean that it is a known issue.
Same happened to me
The same has happened to me after the archos 101 drained its battery fully. I think the firmware has a flaw where it lets the archos drain its battery too far. In that state, hooking it up to the charger wont make it start charging all the time.
I had the blink-blink-blink problem also, even after it had been on the charger for hours. Finally it started working (and charging! )again after lots of 15-second Powerbutton presses, some in combination with Volume Up or Volume Down, and some with and some without the charger connected. Suddenly it turned on (showing 0% charge in the Settings, Information panel indicating it had fully drained and hadn't been charging in the previous hours) . I advice you to keep trying pressing the Power button 15 seconds with the charger connected, and experiment with pressing it in combination with the volume button, followed by a short Power press to boor the Archos.
In the mean time (till a new firmware comes), i make a habit of not fully draining the Archos (i will install Tasker to let it shutdown at 10%) , and checking if the green led comes on after plugging in the charger. Only when the green led is on, it's really charging. And it should start blinking after a few hours to indicate its full.
My wife has a chinese android iPad clone (a Flytouch II) and guess what? It's also picky at charging and turning on.
The Gravity reply had me scared (tnx though) but I'm glad to report that pwhooftman's post helped!
I plugged it in, put a movie on and started trying to reset/start it. It happened reasonably quickly after that.. I pressed the power button while it was off power, the power led flashed once as before. I plugged in the power. The green light lighted up. I pushed the power and + for 15 seconds, and pressed the power button once shortly. Unlike the other times, the blinking pattern didnt start and the green light kept burning. Hopeful, I put it down and waited - as the FAQ said it would start when it d charged more. Finally after a while, I pressed the power button and it booted. Not exactly exact science, but Im just happy that it works again :/
I guess the "blink blink longpause" means something like "I know I've got power but I cant seem to load my battery" - Archos should have this info in their manuals.
Thanks guys
G3n said:
The Gravity reply had me scared (tnx though) but I'm glad to report that pwhooftman's post helped!
Thanks guys
Click to expand...
Click to collapse
Nice to know I can scare people...and it isn't Halloween!
I tried everything I could think of to get it to take a charge, with no luck. The problem I had with mine was the times it wouldn't take a charge BEFORE I had drained it - that is why it got drained in the first place.
I hope it was only mine!
He s at it again. Drained to 3% and now it wont charge anymore. *sigh*
except he wont even do the blinking anymore now.
Seems to be a fairly common issue with these tablets :/
Same thing was happening to me too. Dunno if this will work for people, but here is how I fixed mine.
Hold your finger on the power button for 10 seconds while the blinky light is on. This should stop the light completely.
Then plug the charger in. This gave me a continuous light rather than a blinky light. Leave it like that for a couple of hours and then try powering it on again.
Hope this works for others.
Had this happen to me once so far. Seems to have to do with it going into a sleep state or something. If I leave it for long and the screen turns off. Sometimes it won't come back up without first holding down the power to shut it down (even though I can't see anything on the screen) and then waiting to boot back up. I had to plug it in, get the steady light and then power on and it worked.
OK, I know this sounds weird...
But what's the temperature of the A101 like?
I had an identical problem a short while ago, and a forum post suggested that the tablet could be too cold. I thought it was a total shot in the dark, but I wrapped the Archos in a quilt for a few minutes, and amazingly enough, it popped back into life with the charger plugged in, and has been pretty fine since then.
To be fair, it could be one of three things: (i) temperature is the issue, (ii) coincidence, (iii) a bad connection in the pins/socket of the adapter input on the Archos 101 which just needs 'jiggling.'
I have also noticed that if I charge the Archos while it is in standby, I never get more than 92-94% battery. If I shut it down, plug in, then shut it down again when it restarts on power supply insertion, I can usually get 98% battery, at the least, sometimes 100% battery.
I agree, we shouldn't have 'quirky' devices, or have to wait for firmware to fix them, but other device makers have had similar problems in the past with battery reporting, until appropriate firmware fixes.
it happened to me last night frustrated the heck out of me couldn't get it to turn on no matter what i did, so i took it back to pc world and the guy said
"what would you like to do, out of curiosity do you like it?" I replied no and he said "then ill refund you"
i then paid the extra on a galaxy tab and not looking back the archos was a complete pile of sh!te! I almost cried when i turned it on and spent the next two months convincing myself i actually liked it.
its woefully made, cheap and tacky, screen is pathetic and the memory appalling.
i know its cheaper than tab and iphone but for 270 it should still be fit for purpose and this is not it's the worst gadget ive ever owned by a long long shot, i didn't even show it off at work because i was so embarrassed at how bad it was.
G3n said:
He s at it again. Drained to 3% and now it wont charge anymore. *sigh*
except he wont even do the blinking anymore now.
Click to expand...
Click to collapse
So, how did the story end?!? Did it survive?
Ok...
I kid you not, i've tried warming the archos up with a hot water bottle for several seconds and that did the trick appearently...
Had the same problem.
TheTen said:
OK, I know this sounds weird...
But what's the temperature of the A101 like?
I had an identical problem a short while ago, and a forum post suggested that the tablet could be too cold. I thought it was a total shot in the dark, but I wrapped the Archos in a quilt for a few minutes, and amazingly enough, it popped back into life with the charger plugged in, and has been pretty fine since then.
To be fair, it could be one of three things: (i) temperature is the issue, (ii) coincidence, (iii) a bad connection in the pins/socket of the adapter input on the Archos 101 which just needs 'jiggling.'
I have also noticed that if I charge the Archos while it is in standby, I never get more than 92-94% battery. If I shut it down, plug in, then shut it down again when it restarts on power supply insertion, I can usually get 98% battery, at the least, sometimes 100% battery.
I agree, we shouldn't have 'quirky' devices, or have to wait for firmware to fix them, but other device makers have had similar problems in the past with battery reporting, until appropriate firmware fixes.
Click to expand...
Click to collapse
G3n said:
I'm at a bit of a loss here..
Instead of powering on, the battery light goes *blink* *blink* *LongPause* ..
I have a (3 day old) Archos 101 and updated to the most recent software when it I first powered up the device. I probably drained my battery yesterday when I put it in the night stand drawer while Aldiko was trying to import a fresh ePub file..
When I turned it on this morning, it blinked once and stopped. When I plugged in the charger (figuring the battery was drained) the "blink blink longpause" started. Long pressing the power button stops the blinking. If the power is connected, the power light burns, so I figure its charging. If its not on power, the power light doesnt burn. I tried the "Hold + while powering up" to boot into recovery but that doesnt change anything.
The Archos FAQ said something about charging the battery, but its been charging for about 9 hours now and the device still wont turn on.. (Green light still burns continuously while charging, not when disconnected) My XDA forums search didnt turn up any results..
Anyone got a clue what this means, what I can do or whatever? Tnx
Click to expand...
Click to collapse
HERE is the FIX ! I am on my second A-70/250 - my wife has the 8gb version, and I thought the 250gb one was simply defective - evidently, this IS a known issue, but it can be fixed, and I sent back my other one without reason
Anyways, no more pity party for me, here is the fix - if you have the flashy-power light dealio going on, plug your Archos into the power adapter, plug the adapter into the wall, and plug in the USB CABLE to the Archos, and to your PC - the Archos WILL pwoer up, when it does, it asks if you wish to mount the USB to copy files, select, "YES" and let it sit and charge ! Now - the REASON it does this is VERY simple, and it kills me to admit that I was killing my tablet all by myself ! Disable the "never off" screen thingy - set it for 10 minutes - (settings - display - screen timeout). Go into your power settings as well - (settings - power management) and make sure there is a checkmark in the deep sleep area ! THAT IS IT ! You are fixed ! Dang... I REALLY wish I would have found all this out before I returned the other one - I had SO much stuff loaded on it ! GAH !! - SenKat !
I got the same problem yesterday, it kept blink blink and could not turn on. After 5 hour charging, I warmed it up by hair dryer and suddenly it's on. Crazy amazing! Hahahahahuahuahuahua.
Temperature is main problem. Try with your hair dryer!!! Heheheheheh
Its sounds unbelievable, but low temperatures are indeed a cause.
Sent from my GT-I9000 using XDA App
my a70 had this same problem, left it rest a whole night, then plugged it in to usb and power (usb 1st) and it booted up, hope this helped

Touchpad no longer turns on

Hi Everyone,
About 20 mins ago, my Touchpad running CM7 Alpha 2 suddenley stopped responding (the touchscreen that is), so i held down the power button to turn it off.
However, it wont turn back on! I have tried Home + Power + Vol Up for more than 30 seconds about 3 times and nothing. I am charging atm and nothing on screen. I have also tried holding the power button for about 10 seconds. Nothing!
Any suggestions?
mouseym~
Home + Power button for around 20 seconds should bring it back to life.
Sent from my HP Touchpad using xda premium
gaz31 said:
Home + Power button for around 20 seconds should bring it back to life.
Sent from my HP Touchpad using xda premium
Click to expand...
Click to collapse
Hmm, that sort of worked, i got the glowing HP symbol and it turned off again, repeating does the same thing too!
Thanks,
mouseym~
mouseym said:
Hmm, that sort of worked, i got the glowing HP symbol and it turned off again, repeating does the same thing too!
Thanks,
mouseym~
Click to expand...
Click to collapse
Sounds like your moboot has some problems when you forced shutdown it, try go to the webos recovery statue (the statue when you install CM7 into your TP), connect TP to your PC and reinstall moboot, or the whole CM7 if that doesn't work.
Good luck
mouseym said:
Hi Everyone,
About 20 mins ago, my Touchpad running CM7 Alpha 2 suddenley stopped responding (the touchscreen that is), so i held down the power button to turn it off.
However, it wont turn back on! I have tried Home + Power + Vol Up for more than 30 seconds about 3 times and nothing. I am charging atm and nothing on screen. I have also tried holding the power button for about 10 seconds. Nothing!
Any suggestions?
mouseym~
Click to expand...
Click to collapse
Same problem! Did you find a solution yet? I'm trying to figure out how to follow tigerdavid's advice.
Ok follow-up on this - I can't even get the TP to be recognized by my computer. What now?
How long did you leave it plugged in i had to leave mine plugged in for a couple of hours into the wall outlet before it would show the batter charging icon then turned on shortly after that
Sent from my SGH-I997 using xda premium
hi,when your tp is in the off statue,try holding both the power and the volume up botton, and then you can see a usb icon on your screen, that is the webos recovery mode.
Sent from my LT15i using xda premium
---------- Post added at 10:02 PM ---------- Previous post was at 09:44 PM ----------
Mhaddy said:
Ok follow-up on this - I can't even get the TP to be recognized by my computer. What now?
Click to expand...
Click to collapse
When you are in the webos recovery statue, the one I said in the last post (there is a usb icon on the screen), you can connect it to the computer, and neglect windows' response as it cannot recognize it, because it is actually a false warning. Then try following the steps for installing CM7.
had the same problem yesterday. just held power+home til it said to release the buttons.(previously i released as soon as the hp globe came up and it turned back off) hope this helps
When all else fails try this:
Hold power, Volume Down, and Home until the HP logo appears. May take up to 30 seconds or longer. Release all three buttons and the Touchpad should then boot. Worked for me the one and only time I've had to use it.
I charged Touchpad's battery full and turned it off about a month ago. Now I tried to turn it back on, nothing happens.
I plugged in usb charger, button under display started blinking. After 10mins, tried to turn it on, display turned on and it said attach own charger to get best results... blaablaa.. and then turned back off
Now it has been on own charger over an hour, in the beginning button blinked again for a while. Now it's all black and nothing happens. Tried power, pwr+front btn, pwr+vol up, pwr+front btn+vol down. Nothing.
Maybe I just haven't given enough light treatment?? I'm getting worried..
edit: overnight at charger, no change... battery dead? This sucks.
veepee78 said:
I charged Touchpad's battery full and turned it off about a month ago. Now I tried to turn it back on, nothing happens.
I plugged in usb charger, button under display started blinking. After 10mins, tried to turn it on, display turned on and it said attach own charger to get best results... blaablaa.. and then turned back off
Now it has been on own charger over an hour, in the beginning button blinked again for a while. Now it's all black and nothing happens. Tried power, pwr+front btn, pwr+vol up, pwr+front btn+vol down. Nothing.
Maybe I just haven't given enough light treatment?? I'm getting worried..
edit: overnight at charger, no change... battery dead? This sucks.
Click to expand...
Click to collapse
Bummer. I don't think it's good to let a Li-Ion battery fully discharge. I've had bluetooth headsets and older spare laptop batteries die because they were sitting in a drawer for months. It sounds like this is what may have happened to your Touchpad. You should have left it plugged in somewhere!
UCLAKoolman said:
Bummer. I don't think it's good to let a Li-Ion battery fully discharge. I've had bluetooth headsets and older spare laptop batteries die because they were sitting in a drawer for months. It sounds like this is what may have happened to your Touchpad. You should have left it plugged in somewhere!
Click to expand...
Click to collapse
Yeah, that's what seems to have happened. I just dont digest the idea that it died in 3 to 4 weeks. In standby, yes, but in off state.. if this happened after months, but we are talking only few weeks.
Any idea where to get a spare battery? Ebay show zero results.
Swyped from sgs2
It isn't likely its the battery, probably some kind of internal failure, but even if the battery is stone cold dead you should still be able to plug it in and run it that way.
You can change another microusb cable to re-charge again, b'cas the original cable quality is not good. Led blinking shows that battery is in low capacity, TP will bootup after charging to minimum battery voltage.
HP Back in life..
Got it working...
I let it be a week without any trying. Then plugged it's own charger on and the home started blinking again and after a while battery image came up! So it was in some sort of hang situation and needed to drain the battery again.
I did that also first time but at that time it just stopped blinking home and did nothing after that.
Now few hours later it's turned on and charging, 45%..
veepee78 said:
Got it working...
I let it be a week without any trying. Then plugged it's own charger on and the home started blinking again and after a while battery image came up! So it was in some sort of hang situation and needed to drain the battery again.
I did that also first time but at that time it just stopped blinking home and did nothing after that.
Now few hours later it's turned on and charging, 45%..
Click to expand...
Click to collapse
Thanks for reporting back on your situation!

[Q] Battery problem Venue

Hi to all
Hope that somebody will be able to help me. The battery on my Venue was completely drained last night during a phone call and the phone shut down. I connected the charger, waited for 30 minutes and tried switching it on, but all I got was the info on the screen is a pic of battery with 0% in it. I tried charging it overnight, connecting it to a computer, but nothing happened, each time I try to switch it on, I get that info (battery 0%).
The battery was ok, I was using it for two whole days before it drained so much that it shut down. I have no custom ROM installed, everything is completely from the factory. I tried taking the battery out, SIM card out, SD card out, no luck. Never had my battery completely drained before, so I can't say if this would happen before. Battery worked perfectly until now.
Found an info that it might be due to the battery protection circuit...? Unfortunately, can not take it/send it to Dell as I bought it in US, and I'm in Europe now. Any idea of what I could do? I would really appreciate it...
Thanx!
Ok, here I am, not to jinx it, but I think I resolved it. I tried switching on the phone again, but with no success. Then I tried entering the setup menu (or whatever it's called) by pressing 'volume down' key and on/off switch, in which I succeeded and saw the setup screen. I DID NOT TOUCH OR CHANGED ANYTHING, just left it like that, connected to the wall outlet charger for a few minutes. After the screen shut down on itself, I took out the battery (after unplugging it from the wall outlet) and put it back after a couple of minutes. Then I plugged the phone in the USB slot of my computer and left it like that for 15 minutes. I tried switching it on again and it worked - the battery was on 3% and the status was 'charging'. Now it's on 51% and 'charging'.
I hope that is the end of the problem, I will never let the battery drain out completely again. Just to be on the safe side, I ordered another battery from dell.com.
Hope this helps someone.
hi you, my V had that problem too, i shutdown phone, connect the adapter, icon battery show on the screen and wait 15 minutes then hold on power button, everything will be ok
i also had a problem charging with the wall adapter when i switched to custom rom (cm7) for 2 days but after 2 days it started charging from the wall adapter..
Thanks a lot people here
This helped me a lot
My dell was 0% when it switiched off automatically
I connected to wall charger in the night
Till morning it was 0%
I read above
But all I did was connected it to USB slot in PC
and left for 10 mins
Then started it
And it went on
No such problem has arised for me till now.
Actually im using samsung galaxy y's wall charger!As i had that in my room, and both uses same charger, i didnt change it and kept dell charger in the box only!
Though using data cable of dell for pc
Wall charger takes 2hrs max to charge the venue fully.

[Q] Sleep of death (won't turn on)?

Anyone getting the sleep of death on their XTZ2? I'm running completely stock (not even rooted) on 23.0.1.A.4.30 and just experienced the unit not turning on at all until I do power + up volume.
Upon returning to life, the battery was 90%, so it wasn't battery.
Had a bit of a panic attack until I googled the solution (power + up) but this is the first time its happened to my unit, could it be related to the recent upgrade to 23.0.1.A.4.30? Anyone else seen this?
Mine lasted a day and a half after the 23.0.1.A.4.30 update and then became very erratic and kept forgetting wifi login info.
Did a restart and certainly got a sleep of death OK.
Would not switch on at all.
No power + vol up or attempt at repair via PC Companion made any difference to it.
Since gone back to Sony for repair, that was weeks ago, who knows if /when they will return it.
I had the same problem with mine as well I have the 561 the Verizon model. I have received a replacement but have not been able to get it to turn on either. It shows no signs off life at all not even when connected to power AC or PC. My old one would blink red and go dead when connected to a PC but this one doesn't even do that. I haven't had time to call for another replacement yet but really two defective devices in a row the second one didn't turn once.
Finally got mine back from Sony repair agent.
Worked fine for 3 days, then failed to power on again as per original fault.
Once again returned it for repair.
Think I'll give up and buy an iPad instead - at least they seem to be reliable and consistent.
This just happened to my tablet this morning. Tried all options under the sun but can't get it to boot.
I can't even do a factory reset and I don't particularly want to return it under warranty.... :'(
Mine is an xperia z2 tablet sgp561 (USA Verizon) build 17.1.D.0.437, stock 4.4.2. This issue happened to me 5 days ago after I powered off the tablet, it won't turn on again. Battery charge was ~70% at the time. Plugging it with factory Sony usb charger won't do anything, charging status LED remained Off, power button unresponsive. I let the tablet sit for 2 days without charging cable connected hoping the battery will drain completely by itself and the buggy firmware will restart executing at its base address getting out of the bug. Then I connected the crap to a fully charged 15000mah Anker power pack and alas, the charging status LED glowed red and after ~5 more minutes the LCD screen turned On for ~5 seconds showing a big battery icon at the center of the screen indicating 0% charge. Waited about 1 more hour and the charging status LED turned amber. This time I did the "power button + volume up" ritual holding both buttons for 10 sec+, expecting 3 vibrations but didn't feel any. At this point the tablet is still powered off. Because LED = amber, thinking battery must be at least 10% charged by now, just pressed the power button for ~2 sec and surprisingly the normal power On vibration came followed by Sony logo on LCD screen and the rest is normalcy.
From what I can remember, the recent change I made before this problem happened was turning Stamina to On in the battery settings (factory default is Off). I reset all settings back to factory defaults and so far so good.
Finally got mine back from Sony repair agent after about 3 week wait.
Seems to work OK now, fingers crossed it will keep working this time.
The note that came with the return indicated that they replaced the mainboard and battery, which is a better solution than their first attempt which was just to reflash the software.
wooly1 said:
Mine lasted a day and a half after the 23.0.1.A.4.30 update and then became very erratic and kept forgetting wifi login info.
Did a restart and certainly got a sleep of death OK.
Would not switch on at all.
No power + vol up or attempt at repair via PC Companion made any difference to it.
Since gone back to Sony for repair, that was weeks ago, who knows if /when they will return it.
Click to expand...
Click to collapse
Dude same thing, WTF is going on, I tried plugging it into charger, nothing. And once I got the msg of red colour battery icon and then I plugged it in. then it started charging and I was happy so I turned it on the it wasn't charging,
Please update me what happened and what they are saying cause I am about to send mine to get it fixed.
Edit: seems that by replacing the battery and mainboard has actually fixed the issue? Guess it's time to send it back to them, Gosh
c64rbr said:
Mine is an xperia z2 tablet sgp561 (USA Verizon) build 17.1.D.0.437, stock 4.4.2. This issue happened to me 5 days ago after I powered off the tablet, it won't turn on again. Battery charge was ~70% at the time. Plugging it with factory Sony usb charger won't do anything, charging status LED remained Off, power button unresponsive. I let the tablet sit for 2 days without charging cable connected hoping the battery will drain completely by itself and the buggy firmware will restart executing at its base address getting out of the bug. Then I connected the crap to a fully charged 15000mah Anker power pack and alas, the charging status LED glowed red and after ~5 more minutes the LCD screen turned On for ~5 seconds showing a big battery icon at the center of the screen indicating 0% charge. Waited about 1 more hour and the charging status LED turned amber. This time I did the "power button + volume up" ritual holding both buttons for 10 sec+, expecting 3 vibrations but didn't feel any. At this point the tablet is still powered off. Because LED = amber, thinking battery must be at least 10% charged by now, just pressed the power button for ~2 sec and surprisingly the normal power On vibration came followed by Sony logo on LCD screen and the rest is normalcy.
From what I can remember, the recent change I made before this problem happened was turning Stamina to On in the battery settings (factory default is Off). I reset all settings back to factory defaults and so far so good.
Click to expand...
Click to collapse
Did this method work for you? Plus did you come across like it was charging but it wasn't really charging,(like it showed the low battery stat with orange/red colour LED notification but suddenly it vanishes) then it's not responding at all.??
I had this issue 2 times with months in between , no response from power+vol up , no lights when charging , no response from pressing on the red button behind the flaps.
The last time it happened i tried putting it on the charger for a whole day with no result, then decided to let it rest a few days first , since someone had the same issue and it magically came back to life when he got back from a vacation.
So i try to turn it on 2 days later and the tablet to my surprise responds again with blinking red LED, recharching afterwards did the trick and worked again since
In my case i was running CM11 at the time, both times it happened after an update which required a reboot while, still mistified about the cause and the fix , i presume it solved itself by letting the battery drain.
Since then i reverted to stock rom just to be save but havent had it happen since, this also seems to have fixed some touchscreen problems i was having at times.
Hope this helps.
Bloody hell, I've just ordered mine today!
Don't stress. Mine got repaired. if it goes tits up that's what warranty is for
What did Fonebiz indicate was wrong with your Z2.?
They replaced the motherboard in mine.
Exactly the same, works fine now
This just happened to me today. So seems like overall suggestion is to try and let it discharge. The try to start it back up and charge it then. Just want to make sure that's the only potential solution now?
No! Leave it powered off, put in on a known good charger for at least 12 hrs. Don't touch it in that time.
If it does not come alive after that, send it in for repair.
ok..let me try that. I originally tried that and nothing occurred. However, I just found the OEM charger and usb cable and will try that. Unfortunately it's a Verizon version so sending it in will not be covered by Sony warranty. Per the Customer Service that I called.
ok..tried another charger and the red light came on, but it's been over 12 hours and still no go. I did notice that the red light was no longer on (from overnight charging). I left it unplugged for a bit and reconnected. The red light came back on but still no response. Sounds like i'll need to send in?
Looks like it.
Had the same problem on tuesday. Impossible to switch on, no light, none effect with charger, none effect when connected to PC/MAC etc...
After 4 days without charging my Z2, it came back to life, showing only a big red battery icon when pushing some seconds on the power button. Connected to a charger the red led indicator glowed ! (red battery icon is totally different with the original icon when tablet is charging in power off mode)
After a full battery charge with OEM charger and after a normal power on, my Z2 is now perfectly functionnal.

Unusual battery drop. Will not charge or change battery from 20%. Phone unresponsive.

Long story short. Another Z compact down. This time it's my Z5C.
Unrooted Z5C E5823. I flashed some marshmallow from xperifirm (build 32.2.A.5.11) some 8 months ago...
Description of events:
Just finished texting. Turned screen off. I go to turn it on again but the phone turned off, because pressing the power button doesn't do jack. Long press it and doesn't turn on.
... great.
Volume down + power button and it turns on after 3 vibrates. Battery level plummeted from ~70% to 20%. So I just put it on a wall charger and wait.
Some 20 minutes later, I'm surprised to see that the phone is still at 20%. So at this point I'm sure something is very wrong and I start browsing for solutions. Nothing worked.
The only thing I didn't do is a factory reset. But I seriously doubt it's a software problem.
So I say "screw it" and I unplug it from the charger and start using it normally. At some point the phone turns off on itself so I have to do the volume down + power button combo again. But this time, alas, it doesn't work either. So I try the little yellow "off" button on the SD bay + holding power button. This time the phone vibrates 3 times. Then I turn he phone on again. But this time it turns off after some 40 seconds. Then it began a short power on/off cycle and then remained off. Won't turn on. Like if it was hard bricked. I fiddled with the yellow off button while plugged in on the charger and it turned on again but still won't go past or below 20%. Ever.
I remove it from the charger and go home from work. Phone is unresponsive. PC doesn't recognize it. No key combination works. Charger and key combinations don't do jack. But THEN out of the blue, I sense 3 very faint vibrations (i just kept trying to power it on, I wasn't giving up ) and now the phone is on again. Battery at 20%, obviously. Service menu doesn't have a battery test anymore. How convenient... Battery usage menu is always the same when I turn it on. PAst history is gone, app % use are all the same ratios.
I'm trying to backup my data now. But at the meantime. Phone is on and still stuck at 20%.
So, is the battery dead? Wth is going on?
i have smailer problem
my phone wont pass the 90% . also after factory rest (stock rom\kernel\no root\lockedBT)
still, im not sure 100% is my batt i think is started from android 6 (now im at 7)
also my phone wont pass some voltage also (4.300) was 4.350 when the phone was new with 5.1.1
but in QC2 quick charger its 4.308volt max with 92% so i dont know whats goin on:|
hi,
I had same problem somes weeks ago.
try flash new rom, phone stuck at 20% but seems to have same battery's autonomy .
after a week I changed the battery, now all works fine
I think this is the lithium controller that is dead not the battery itself .
Battery and turn off problem
My Device have charge (50,60,70 or more), unnexpected it show 0% and turn off.
Hardware problem maybe ???

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