Bought a 16 GB Wifi Samsyng Galaxy 10.1 Tablet from a friend. Not rooted. Was working fine until I upgraded to the stock 3.2 from Samsung. Now, it won't boot unless it's pugged into the wall charger. The battery says its at 100%, but it goes immediately off when I unplug it. It won't boot at all....not even into recovery unless it's plugged in. The computer wont recognize it when using the USB cord and it won't do anything.
Can the software do weird things to the battery? What do I do? I can use the wall charger, boot into recovery, wipe data and factory reset....then setup my google account and it works fine....until I unplug it. Then it goes black immediately.
I'm not a noob, (several Android phones, all rooted and custom Roms flashed...thx XDA).......but I'm stumped on this one.
Pease help.
Try going back to 3.1 and see if it goes away, or try a Custom Rom. Task14 is very stable and reliable to test with
as long as you can turn it on, you are safe. Like above said, install Task14 rom!!
badboy47 said:
as long as you can turn it on, you are safe. Like above said, install Task14 rom!!
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Thanks for the suggestions....but since I can't get the tablet to do anything while it's connected to the computer, how do I get the tablet rooted or even get the 3.1 or a custom Rom onto the tablet?
I plugged it in again last night (with wall charger)....it showed the battery as 100%....then it vibrated and the screen faded (as it's supposed to do). It won't turn on when you press the power button only.....not even if I hold it down to force a reboot. So I have to boot it up by using the power button and the down volume key combo. From there, I wiped the cache, and did a factory reset. (all this time it's plugged into the wall charger) Then when it rebooted and I was able to set it up with the Wifi, Google account, market access, etc. I even played a game and went to You Tube and watched a couple videos just to make sure it was working. Everything was working perfect (as long as it's plugged in to the wall charger). I left it alone for several hours to see if the battery was just reporting 100% but in fact was NOT at 100%. The screen went black, but would come back on when pushing the power button quickly (as it's supposed to do) So I left it like that overnight. This entire time the battery was reporting 100%.
This morning, I quickly tapped the power button and it came back up (still plugged in). Working great. As soon as I unplug it from the wall, it went black and now it won't do anything.
It won't boot or do anything using the USB cord and the computer. How do I get the new ROM or old stock 3.1 onto the dang thing if I can't get it connected?
This thing is frustrating me.
HELP,
yesterday, I was using my nexus 7 for normal use, wasn't playing game, just browsing with chrome. the battery was 8 percent when I last saw it. I then proceed to charge it, but the thing suddenly just shut down itself. I thought I misread the battery percentage, so I charge it anyway. about an hour later, i checked on my nexus 7, turn it on, got to the boot screen, got to the home screen, use it for about 15 minutes, and suddenly, the screen black out, it was flickering like crazy, and making some white noise ish sound. I panicked so I hold down the power button and turn it off. I turn it on again, and after about 30 seconds, the same thing happened again. I was using motley's kernel with 520 GPU, and I thought, maybe my nexus 7 cant handle the GPU OC. So I went to recovery, tried playing with recovery for about a minute or so, but the screen didn't flicker at all on the recovery. So I flashed the 484 GPU version of motley's kernel. When I reboot to system, the same thing happened again. So I thought, maybe if I restore to my old backup, it would not be like this any more. so I wipe the data, dalvik, and cache, and I restore my old backup. But the same thing happened again, only this time, after I turn it off, it make a high pitched sound.
I waited for about 6 hours, and now when I turn my nexus 7 on again, it works normally.
So, what has happened to my nexus 7?
bump
I'd say it is the overclock. Graphic cards do some weird stuff when overclocked. You can burn up your GPU doing that and cause it to forever freak out. I always shied away from GPU overclocks.
Sent from my Nexus 7 using xda premium
would that cause any permanent damage?
keni.mardira said:
would that cause any permanent damage?
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It should be ok if you reflash back to stock rom to make all the hardware back to reset mode. A warning always given when we try to flash rom with oc created.
i also experienced this one, also received a battery warning and then suddenly screen went blank. then same weird thing happened as the one above. I'm on paranoid android rom and i'm quite sure it's not overclocked or something. Was only able to get back to normal by holding the power button for around 15-20 seconds...
Happens to me
This will happen to me a lot when my nexus 7s battery dies, I plug the tablet in and then immediately try to start it up. It will work for around 30 seconds then look like an old TV without a signal. I am on stock everything, no rooting or custom Roms (yet). I always thought it had something to do with battery calibration being off and the tablet not having enough power to run, because it always works fine when I charge it before attempting to boot.
I have also noticed that every once in a while the screen will have a vertical line of pixels flicker.
Same thing happened to me yesterday...
I got the "low battery" warning and after some time the screen started flickering in many colors and there was a weird static noise.
I pushed the on/off button, but it wouldn't turn on again. After a few minutes of charging, I could turn it on again.
This isn't normal behaviour, is it? Shouldn't the N7 perform a regular shut-down when the battery has no juice left?
I'm on the rooted stock rom btw.
androidswagz said:
This will happen to me a lot when my nexus 7s battery dies, I plug the tablet in and then immediately try to start it up. It will work for around 30 seconds then look like an old TV without a signal. I am on stock everything, no rooting or custom Roms (yet). I always thought it had something to do with battery calibration being off and the tablet not having enough power to run, because it always works fine when I charge it before attempting to boot.
I have also noticed that every once in a while the screen will have a vertical line of pixels flicker.
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+1 bro. I am having the same problem. what do we need to do ? it is same with all nexus 7's . should we claim the warranty or just neglect it ? wat say ?
Aditya88 said:
+1 bro. I am having the same problem. what do we need to do ? it is same with all nexus 7's . should we claim the warranty or just neglect it ? wat say ?
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I faced the same problem. I dont know when the battery might have drained out, but on starting the tab on low battery, it suddenly started showing black screen with little grains and suddenly stopped with a noise. I charged, started the tab again while charging, and the battery reading stuck at 21% even after charging for 20 mins. Within 5 mins, it happened again. Now after 35 mins of charging, I start it again, it boots normal, and now its reading the battery percentage in an incremental value (started with 22%) and now its again stuck at 23%
Is this a HW related issue? Or do you think it is more of SW related issue? If it is more towards the HW side, we better have it replaced. Mine is C70 model.
bump
just happened to me... it may have run out of juice... didn't turn on when I tried, so I guess it did... then I put it on the charger, tried booting it, went away for a sec and when I came back I also got this black screen with some flicker and a static noise...
will now try to charge it over night before trying again...
Nexus 7/Google problems
I received my Nexus 7 on Aug 21 after hearing the rave reviews. It didn't come with app for a camera, so I downloaded one.
The camera didn't work. I re-booted it & it worked this time. Downloaded Skype - whole reason for getting the tablet - to stay in touch with family that is far away. Tried to Skype - camera wouldn't work. Rebooted - worked this time again (getting tired of having to reboot for something I want to use to work). On Sept 2, sent message to Google inquiring about camera & app I downloaded. Only response - "thank you for contacting...blah, blah, blah - check out Q&A." All along, the tablet would shut itself down & reboot randomly (battery fully charged sometimes). On Sept 13, I shut it down & charged it. After a full charge, I tried to power it back on. Tried again several times that night & then the next morning. Called Google (who I bought it from). Told them I didn't want a piece of junk that wouldn't work. He told me it was past my remorse period. (The only remorse I have is buying their piece of crap instead of a reputable one.) I finally did get it to come back on, but camera hasn’t work since even after a complete factory reset. Any way – in order to get this one fixed, I have to “buy” a new one, then send back the old one & be reimbursed. Is this a legitimate business practice?
hi,
since today i have the same issue. did nothing special, just swichting from g currents to chrome. stock rom, no modifications, not rooted, everything original
n7 suddenly had a black screen(battery was at 28%). nothing worked, no powerswitch(10-30 secs). when connected to original power supply and cable, it boots up.. google logo .. glowing X.. lockscreen. then, approx. 30 sec later it turns off again(screen black). usb cable still connected. after some time it comes up again.. and repeats the procedure. after some cycles it stops, and when i reconnect the usb calbe it starts over again. sometimes, before it turns black, it shows a flickering screen and sometimes fizzling sound.
any suggestions?
I had this same issue right after the 4.2 ota update, after leaving it on charge overnight it seems fine now after a couple of discharge / charge cycles
Its like after the update it was over estimating the battery level
Sent from my Nexus 7 using xda premium
Same thing!
I have a completely stock Nexus 7, and the EXACT same problems are happening to me too! The first couple of times it happened my tablet would reboot normaly. But now, my tablet won't boot up at all. Any suggestions on what I should do? Also, remember, I have no mods installed.
Happening to me too.My N7 shut itself down because of low battery a couple hours ago and I haven't been able to get it to boot since. When I plug it into the charger it shows a flickering screen like a tv with no signal but with less white flickers. I've tried multiple chargers and cables but I could only get it to boot up a couple times and both times it did not show that it was charging even though it was plugged in and the battery was at 0% so as soon as it boots up it shuts itself down again because of low battery.
So now I've got it on the charger, screen all a'flicker, waiting for it to get a charge but I've got a feeling its not even charging because, like I said, the few times it has booted it showed the battery at 0% and not charging.
I guess I'll try to leave it alone for a while and see if it will start up after being plugged in for a bit.
EDIT: I let it sit there and charge for about an hour or so (with the screen flickering) and I was finally able to get it booted. It said it only had 3% battery but now it seems to be charging as fast as usual.
devhen said:
EDIT: I let it sit there and charge for about an hour or so (with the screen flickering) and I was finally able to get it booted. It said it only had 3% battery but now it seems to be charging as fast as usual.
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Yup... I've let mine sit there turned off and charging over night... helped!
Just had a problem with the Nexus 7 not charging when battery was likely fully depleted. Putting a charge cable in was automatically booting the Nexus 7 up and wouldn't charge shutting down right after. Loops going on and off. What I did was plug a charge cable in and hold power+both volumes and now I believe I am charging at the bootloader screen. It stays on so I will leave it like this and if it doesn't resolve the issue I will try recovery once it is charged.
I've just started having the same issue. Has happened twice when battery gets to 8%, suddenly jumps to 0, shuts down, then after a few seconds restarts itself. Gets to home screen for a few seconds, battery showing 8, then jumps to zero, switches off and has flickering blocks on screen with static noise. This keeps repeating, only way I have found to solve it is to load into bootloader, then select power off. Device charges normally then and once charged works fine. I am unlocked and rooted but running stock 4.2.1, think I'll just have to return it for a warranty claim.
Based on what you experienced, the lesson here is your device can't handle the GPU over clock of more than 446mhz or it will do some crazy stuff.
Sent from my Nexus 7 using xda app-developers app
I was using my N7 this afternoon and it ran out of power. I plugged it in and heard a buzzing noise coming from the device and the charger, but it was booting as normal. After the boot animation stopped, the screen went brown and odd static patterns started flashing. I quickly unplugged it and restarted it. This time it ran out of power before the boot animation finished. I plugged it in a third time and turned it on. This time, a different boot animation appeared ("android" text with a shimmer effect) and went on for about five minutes before I unplugged it and disconnected the battery. I plugged it in again (without the battery connected) and all that appeared were black static-y patterns that seemed to be going in a cycle, as though it was trying to boot. I was using the franco kernel, with a pretty big undervolt (around 300mV). The odd thing is that it was completely stable with the undervolt. I searched for the issue, but the only relevant thread was never answered. I'm kinda freaking out. Any help would be great.
Edit 1: I have just successfully booted into recovery and made a backup, as well as a cache and dalvik wipe. I installed a copy of franco kernel I had in the downloads folder (r48). When I boot, I still get the old "android" shimmery boot animation that won't stop, and I can't move the backup to my computer because of this (I'm using TWRP). To clarify, I have the wifi-only nexus 7 and I was using r61 of the kernel.
Edit 2: After leaving it in the bootloader, plugged into a computer for about 10 minutes, I came back to see the weird black static again. I'm going to factory reset and hope that that fixes it.
Edit 3: It did not. After about 10 minutes, the screen always goes fuzzy and starts buzzing. I'm going to try to send it ti ASUS. Any info is still helpful, though.
Edit 4: I did some further searching and found this thread:http://forum.xda-developers.com/showthread.php?t=1805772
I'm definitely not the only one with this problem. I'm gonna send it back to ASUS anyways, to hopefully get a better model without battery issues and to get a free redo of the super-easy-to-scratch silver rim. Now, to try to remember when I bought this thing...
My AT&T LG G2 (plain D800) is rooted, and has Xposed installed on it (I'm not sure if this caused the issue or not), but here's what I'm having problems with:
I was playing a game, when all of a sudden the phone froze (no biggie, it's done it before, I've held the power button to force restart it, and it works), but the phone shut off on it's own, and would/will not turn back on.
Tge LG boot logo comes up intermittently when I hold power and volume up, but only sometimes. The phone has only twice now gotten to the AT&T logo, but freezes immediately and shuts down. I've tried literally every combination of holding buttons, for up to 70 seconds at a time, both on the charger, off the charger, and while plugging into the charger.
I cannot get to download mode, I cannot get to TWRP, and can obviously not boot into the phone. I had made no changes in weeks prior to this happening, so I can't see why or how something with my phone being rooted would cause the problem.
I've left the phone charged overnight before performing the actions (the phone won't even show battery percentage), so I don't think it's a dead battery issue. Everything I've read so far seems to say that the battery chip has died and needs to be replaced. Somehow I don't think it's the problem.
I'm fully willing to completely wipe the rom, and everything on it, as long as I can get the phone working again. However I cannot boot into download mode to use ADB or anything.
Is my phone completely bricked? Or is there a chance that the battery chip really is fried? Please help!
Update!
I left the phone charging some more, and decided to try volume up and power (while plugged in). The phone actually went into download mode for about 5 seconds before shutting off again. I tried doing the same steps, but nothing will come up again. It appears to be an issue with the battery on the device. Does anyone else think otherwise? Or will I have to send it in for a new battery? (The phone is less than a year old so I don't want to void the warranty anymore than rooting, which they wouldn't be able to tell since it won't turn on anyways).
Update Again:
I can get the phone to show the LG logo/download mode on a fairly consistent basis, sometimes showing a static screen (colored noise, not monotone), sometimes a blue screen, but it will shut off after 5-6 seconds every time.
Hey, I do not want to announce bad but by your description it seems that did you mother board, go to the lab to make sure, I had something similar and I replaced the motherboard and my phone came on time, check if the device is still under warranty has a good chance to replace you under warranty, good luck.
So I went ahead and updated to 5.0 from 4.4.4 recently, unrooted first, flashed everything to stock, and all seemed well. Device started booting up, got stuck in a bootloop for 5 minutes, eventually powered down and restarted, apps were updating fine, and BAM, black screen. Tried powering the device on, nothing. No bump, vibration, or anything. Plugged the device in and tried booting, just get a battery charging icon (not dead battery one).
Been trying to press and hold VOL + - and Power for 5 minutes now, pressing, releasing, waiting 30 seconds, releasing, with absolutely no results.
What in the hell happened here? Device was working perfectly fine before update, no battery problems, no defects.
ThomasBags said:
So I went ahead and updated to 5.0 from 4.4.4 recently, unrooted first, flashed everything to stock, and all seemed well. Device started booting up, got stuck in a bootloop for 5 minutes, eventually powered down and restarted, apps were updating fine, and BAM, black screen. Tried powering the device on, nothing. No bump, vibration, or anything. Plugged the device in and tried booting, just get a battery charging icon (not dead battery one).
Been trying to press and hold VOL + - and Power for 5 minutes now, pressing, releasing, waiting 30 seconds, releasing, with absolutely no results.
What in the hell happened here? Device was working perfectly fine before update, no battery problems, no defects.
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that happened to me.....the way i fixed it, was to allow the battery to charge over night and do a factory reset, then all was fine. what happened with what im reading with the battery charging and draining issues is that the N10 shutdown on you, as did mine
ThomasBags said:
So I went ahead and updated to 5.0 from 4.4.4 recently, unrooted first, flashed everything to stock, and all seemed well. Device started booting up, got stuck in a bootloop for 5 minutes, eventually powered down and restarted, apps were updating fine, and BAM, black screen. Tried powering the device on, nothing. No bump, vibration, or anything. Plugged the device in and tried booting, just get a battery charging icon (not dead battery one).
Been trying to press and hold VOL + - and Power for 5 minutes now, pressing, releasing, waiting 30 seconds, releasing, with absolutely no results.
What in the hell happened here? Device was working perfectly fine before update, no battery problems, no defects.
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Yeah I had the same issue too, just needed to leave it on charge for a long time before it came back to life.