Database Users

My Nexus 7 is doomed...

A few weeks ago, i flashed a stock rom on my wifi nexus. I was happy with it until last week. Charging became incredibly slow - 30% over 8 hours. I threw it in my bag and wheb i got home 8 hours later, the battery was depleted completely. I couldn't turn it on. I plugged it in over night and it stayed at zero percent. I booted into recovery and reflashed my stock rom abd wiped my data. Still didn't charge. I tried going into my bootloader and hitting power off and then plugging in, but it still wouldn't charge. I can't flash my backup because it's on my card that i lost, and even if i had it, i wouldn't be able to keep it on long enough to flash it. ADB won't run on my pc and i don't know how to use the program anyway. What can i do to save my device? Please help.....
Sent from my YP-G1 using xda app-developers app

Replace battery?

veeman said:
Replace battery?
Click to expand...
Click to collapse
Not the average flasher knows how to tear apart a device - including myself. Anyways, this thing won't power up at all? You tried leaving it plugged in and booted into bootloader? If so, sounds like a hardware issue or the battery is defective.

I would be willing to bet that your battery connection came loose. Start at your USB port with a thin piece of plastic, such as a guitar pic. Work your way around the device and remove the back.
Sent from my Nexus 7 using xda app-developers app

DroidOnRoids said:
Not the average flasher knows how to tear apart a device - including myself. Anyways, this thing won't power up at all? You tried leaving it plugged in and booted into bootloader? If so, sounds like a hardware issue or the battery is defective.
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Click to collapse
It's not too difficult. iFixit has a good tutorial on it. http://www.ifixit.com/Guide/Installing+Nexus+7+Battery/9895/1

happyjack96 said:
A few weeks ago, i flashed a stock rom on my wifi nexus. I was happy with it until last week. Charging became incredibly slow - 30% over 8 hours. I threw it in my bag and wheb i got home 8 hours later, the battery was depleted completely. I couldn't turn it on. I plugged it in over night and it stayed at zero percent. I booted into recovery and reflashed my stock rom abd wiped my data. Still didn't charge. I tried going into my bootloader and hitting power off and then plugging in, but it still wouldn't charge. I can't flash my backup because it's on my card that i lost, and even if i had it, i wouldn't be able to keep it on long enough to flash it. ADB won't run on my pc and i don't know how to use the program anyway. What can i do to save my device? Please help.....
Sent from my YP-G1 using xda app-developers app
Click to expand...
Click to collapse
Sounds like my device... only I even can't get into the bootloader nothing... Someone suggested that the battery got so far depleted that it will nor recharge.
However seems you at least can run the bootloader... for me it just stays black ..... nothing nopes nadda

dkd2625 said:
Sounds like my device... only I even can't get into the bootloader nothing... Someone suggested that the battery got so far depleted that it will nor recharge.
However seems you at least can run the bootloader... for me it just stays black ..... nothing nopes nadda
Click to expand...
Click to collapse
Actually, there's a sticky for these issues haha
N7 Turns Off/Won't Turn Back On/Battery Status Issues - The Fixes **UPDATE**...
---------- Post added at 11:28 AM ---------- Previous post was at 11:27 AM ----------
veeman said:
It's not too difficult. iFixit has a good tutorial on it. http://www.ifixit.com/Guide/Installing+Nexus+7+Battery/9895/1
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Click to collapse
I heard that was a good site. I'm more scared of screwing up any hardware than doing the actually tearing apart.

I can boot for like 30 seconds and then it shuts off. I've tried the solutions in the thread link above; however, i still think it is a software issue. I've used other roms that had really slow charging, but i was able to switch to another one before the battery got depleted. So i think my best bet is to somehow get a new rom on my device somehow. ADB won't run on my computer. It just flashes a command prompt on the screen for like half a second and closes.
Sent from my YP-G1 using xda app-developers app

happyjack96 said:
I can boot for like 30 seconds and then it shuts off. I've tried the solutions in the thread link above; however, i still think it is a software issue. I've used other roms that had really slow charging, but i was able to switch to another one before the battery got depleted. So i think my best bet is to somehow get a new rom on my device somehow. ADB won't run on my computer. It just flashes a command prompt on the screen for like half a second and closes.
Sent from my YP-G1 using xda app-developers app
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Click to collapse
What kernel are you on? The kernel is what does the charging operations.

happyjack96 said:
I can boot for like 30 seconds and then it shuts off. I've tried the solutions in the thread link above; however, i still think it is a software issue. I've used other roms that had really slow charging, but i was able to switch to another one before the battery got depleted. So i think my best bet is to somehow get a new rom on my device somehow. ADB won't run on my computer. It just flashes a command prompt on the screen for like half a second and closes.
Click to expand...
Click to collapse
I had a similar situation in that after the battery died, I got it to the point where I could boot up, but after a screen timeout, it would be dead again. Finally, I got it booted again (while plugged into power) and immediately went to developer options and checked the Stay Awake, never sleep while charging. Keeping the screen awake kept the N7 on and it charged up.

Funny my Galaxy Nexus started doing this crap on me too after I updated the rom and kernel. The phone and battery are only 2 months old replaced in April.
Occasionally it won't take a charge. I have to **** with the battery, removing it several times. Then all of a sudden it starts charging again after 10-15 resets.
Haven't had a problem in a while. Typically hits me like every 2 weeks.
No problem on N7 though but it happens. First thing is to change your kernel and rom to something else. If still draining, flash stock and relock, unlock, relock, wipe. Boot, upgrade to 4.2.2 and test.
Sent from my Nexus 7 using XDA Premium HD app

Phone shuts off and freezes

2 days ago my phone (for the first time) just shut off and wouldn't turn back on even if I held the power button. It turned back on after plugging it into an outlet and holding the power button. The same thing happened today.
I'm using the stock battery (I just bought the Anker battery because I figure it's the battery causing issues) and I'm on Scott's CleanROM. I've had the phone since July (brand new) and haven't had any problems since.

How long have you been on this rom/release version? Got a new kernel or try any new kernel settings? Maybe try using the new battery for a few days to see if that's the problem?

xBeerdroiDx said:
How long have you been on this rom/release version? Got a new kernel or try any new kernel settings? Maybe try using the new battery for a few days to see if that's the problem?
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Click to collapse
+1. Sound kernel related. Did you mess with any voltage settings?
Sent from my SGH-I337 using XDA Premium HD app

AT&T - S4 - CleanROM 1.5 is the exact ROM I've had since I installed it. I'm not too sure what "kernal" means so I didn't change any voltage settings or anything like that.

Br4nd3n said:
+1. Sound kernel related. Did you mess with any voltage settings?
Sent from my SGH-I337 using XDA Premium HD app
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Click to collapse
iTech02 said:
AT&T - S4 - CleanROM 1.5 is the exact ROM I've had since I installed it. I'm not too sure what "kernal" means so I didn't change any voltage settings or anything like that.
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Click to collapse
OP, test that secondary battery out and see if that's your problem. keep us posted.
Br4nd3n, your device configuration is almost identical to mine. cheers.

Great setup isn't it? Cheers!
Sent from my SGH-I337 using XDA Premium HD app

iTech02 said:
2 days ago my phone (for the first time) just shut off and wouldn't turn back on even if I held the power button. It turned back on after plugging it into an outlet and holding the power button. The same thing happened today.
I'm using the stock battery (I just bought the Anker battery because I figure it's the battery causing issues) and I'm on Scott's CleanROM. I've had the phone since July (brand new) and haven't had any problems since.
Click to expand...
Click to collapse
I had a problem like this too, running a different ROM, CM 10.1, a nightly - I removed my battery and fully charged it in a stand-alone charger and returned it to my device and haven't had an issue since.

FourPointedFreak said:
I had a problem like this too, running a different ROM, CM 10.1, a nightly - I removed my battery and fully charged it in a stand-alone charger and returned it to my device and haven't had an issue since.
Click to expand...
Click to collapse
I think I just got unlucky with a defective OEM battery. The new battery comes in tomorrow so I'll stick it in there and let you guys know what happens.
Ironically, my phone has this issue when the battery discharges to around ~40%. It's fully charged right now so I want to test that theory as well.

iTech02 said:
I think I just got unlucky with a defective OEM battery. The new battery comes in tomorrow so I'll stick it in there and let you guys know what happens.
Ironically, my phone has this issue when the battery discharges to around ~40%. It's fully charged right now so I want to test that theory as well.
Click to expand...
Click to collapse
Well whatever works for ya. I'd hate to be that one case of a bad battery. Let us know.

So that didn't fix anything since I got the same issue again today with the Anker battery. I have a feeling it's the "hover your hand over the phone" gesture since this happens when the phone is in my pocket pressing against my wallet.

Battery dead?

My N10 started to automatically power off a few months ago when the battery indicator showed 10%, and that power-off number gradually increased over the past few months. Two days ago it automatically powered off when the battery was 25%. But the trouble now is that, when plugged in with a power adaptor, the battery does not seem to get charged even though it shows charging when I push the power button. I tried to power it on once, but it automatically powered off again.
Is it an indication that the battery is dead?
Also, when I was trying to remove the battery, I broke some piece around the pins on the orange ribbon cable on the left. What is this cable for? Digitizer? Can this cable be replaced somehow?

Mine started doing the same thing. It only does it if I leave it on standby for a few days. When I start using it, it will say 25% left but it will auto power down immediately. If you plug it in and turn it back on, it says 0%.
Sent from my XT1585 using Tapatalk

Mine started having an issue of not charging, even though it says it is. The battery is currently stuck at 66%. It doesn't shut down on me though. But I powered it off until I could find a solution. I don't think it's a software issue that would be fixed with a factory reset since I tried turning the tablet off overnight and charging it. Still stuck at 66%. When plugged in, it's not discharging. But it doesn't seem to be taking a charge either. Or at least not enough to charge it any higher. My guess is that the battery needs to be replaced. They go for about $30-$40 on ebay. So it looks like that's going to be my best option. I just hope the battery is the issue and I'm not buying a new one for nothing.

After I disconnected the battery for a short while and cleaned the USB port with alcohol, now the battery can be fully charged. However, the orange ribbon cable (under the guy's left hand thumb in this picture http://www.powerbookmedic.com/wordpress/wp-content/uploads/2012/11/nexus10-takeapart-006.jpg) on the left side is broken when I tried to remove the battery. Anyone know what is the cable for? I couldn't find it anywhere (ebay or anywhere else) to buy.

Hi, I had the same problem when did an update to latest cm versions, something around 23.8. And later. I did a rollback to 16.8. CM and charging works, so I am really suspecting latest CM updates for nexus 10 are a root cause of this behaviour. But not tested intensively. Could you try to install older CM versions?
Edit: i havent noticed months ago, I thought few days ago, so my comment is not valid

mark.l said:
Hi, I had the same problem when did an update to latest cm versions, something around 23.8. And later. I did a rollback to 16.8. CM and charging works, so I am really suspecting latest CM updates for nexus 10 are a root cause of this behaviour. But not tested intensively. Could you try to install older CM versions?
Edit: i havent noticed months ago, I thought few days ago, so my comment is not valid
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Click to collapse
I updated my N10 with the August 24 version of CM. Maybe you're right that the battery could be caused by the recent CM version.

mark.l said:
Hi, I had the same problem when did an update to latest cm versions, something around 23.8. And later. I did a rollback to 16.8. CM and charging works, so I am really suspecting latest CM updates for nexus 10 are a root cause of this behaviour. But not tested intensively. Could you try to install older CM versions?
Edit: i havent noticed months ago, I thought few days ago, so my comment is not valid
Click to expand...
Click to collapse
I'm running CM as well. I'll try flashing the newest version. If that's the issue, maybe they have fixed it. If not, I'll try rolling back to an older version and see if that does it and report back. To roll back, do you just simply flash an old version over the existing one? I've never had to go backwards before.

Coming back in here to confirm that my issue was indeed Cyanogenmod. Went back to the last Snapshot and it charged up again.

So I can reinstall Cyanogenmod again without it messing up ?

BackDaws said:
So I can reinstall Cyanogenmod again without it messing up ?
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Click to collapse
Yeah, just flash the latest snapshot. I think the date is 8/20

jsgraphicart said:
Coming back in here to confirm that my issue was indeed Cyanogenmod. Went back to the last Snapshot and it charged up again.
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How to report it? I am not sure what version does not have this issue. Still running on older version. When having time, Ill try September's version.

mark.l said:
How to report it? I am not sure what version does not have this issue. Still running on older version. When having time, Ill try September's version.
Click to expand...
Click to collapse
Go check out the Nexus 10 cm13 thread. There's a lot of talk about it already

jsgraphicart said:
Go check out the Nexus 10 cm13 thread. There's a lot of talk about it already
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Click to collapse
Hi, thanks, found it and the yalready have JIRA issue for tracking the fix
so we can close this thread I assume as all of us are happy that CM caused drainig our batteries

10-20% (+/-) battery drop after a reboot

I've already tried doing a battery calibration as recommended by many people on the V20 threads, buts this is still happening to me. If I reboot my phone, when the phone comes back on, my battery level has dropped 10-20% (give or take). I know reboots can consume battery, but this is quite a large consumption.
Last night, for example, my battery was at 60%, but after I rebooted, I was immediately at 25%.
Again, I've down the whole calibration thing at least 5x now, and it hasn't helped with this. So now I'm wondering:
1) Is anyone else having this issue, especially with the same variant as me (see below)
2) Is this a Nougat 7.0 issue
3) Is this a battery (hardware) problem. I ordered one of the spare battery kits that come with an extra battery. I figured that I'd try the new battery, but if it doesn't help, then I have a second battery anyway.
ATT variant (h910)
Running on ATT
Battery life has been mediocre to poor, and I've disabled so many features by now that it's gotten kinda ridiculous.
Sent from my SM-P600 using Tapatalk

Try the battery if not, warranty, that's not normal

wing_addict_usa said:
Try the battery if not, warranty, that's not normal
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Yeah, I didn't think it was normal. I was hoping it was a Nougat 7.0 issue, but I wasn't hearing anyone else with this issue. And as stated too, my battery life hasn't been great. I make it through the day, but only of the phone isn't used much. Otherwise, the battery will drain pretty fast.
Sent from my LG-H910 using Tapatalk

What was your calibration method? Running it down to zero once should be good enough then charge with phone on or off without using it to 100%. If still doing it try your other battery. If still doing it exchange.

@rbiter said:
What was your calibration method? Running it down to zero once should be good enough then charge with phone on or off without using it to 100%. If still doing it try your other battery. If still doing it exchange.
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Click to collapse
I pretty much did as you just said.
I ran the battery down until the phone powered off. Then I kept attempting to power it on until the LG logo stopped showing up and the phone said that there wasn't enough power to turn on. Then I charged the phone to 100% while phone was still off. Once it hit 100%, I left it charging for another 2 hours.
Overall, it helped, but once I reboot the phone, the battery always drops quite a bit as stated in my first post.
Sent from my LG-H910 using Tapatalk

spexwood said:
I pretty much did as you just said.
I ran the battery down until the phone powered off. Then I kept attempting to power it on until the LG logo stopped showing up and the phone said that there wasn't enough power to turn on. Then I charged the phone to 100% while phone was still off. Once it hit 100%, I left it charging for another 2 hours.
Overall, it helped, but once I reboot the phone, the battery always drops quite a bit as stated in my first post.
Sent from my LG-H910 using Tapatalk
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Click to collapse
Do you have twrp intalled? I think Lg has a problem with it's battery stats because of the removable battery. On my v10 I had two spare batteries. When one got to like 4% I would power down and pop in the new one. When back on it would read the battery at like 19% or something to the liking. I had to leave my phone off for about 30 secs between changes. I was having similar issues to what you're describing with my v20. I ended up formatting data in twrp and then set my phone up old school style with manual app installation and no data transfer whatsoever. I let the phone die completely and then charged while on uninterrupted. I then at 100% unplugged it and plugged it back in for 20 minutes. My battery has been perfect since. I would also note similar issues on the G4 too. I think this is the cause for the notorious Lg bootloop.. My G4 did it right before the battery drained out and so did my V10..

I had that problem on an old note 4. But not a drastic a jump in percentage. Brought it to Samsung and they just changed the battery and the problem went away.

Swizzle82 said:
Do you have twrp intalled? I think Lg has a problem with it's battery stats because of the removable battery. On my v10 I had two spare batteries. When one got to like 4% I would power down and pop in the new one. When back on it would read the battery at like 19% or something to the liking. I had to leave my phone off for about 30 secs between changes. I was having similar issues to what you're describing with my v20. I ended up formatting data in twrp and then set my phone up old school style with manual app installation and no data transfer whatsoever. I let the phone die completely and then charged while on uninterrupted. I then at 100% unplugged it and plugged it back in for 20 minutes. My battery has been perfect since. I would also note similar issues on the G4 too. I think this is the cause for the notorious Lg bootloop.. My G4 did it right before the battery drained out and so did my V10..
Click to expand...
Click to collapse
I have the ATT V20, which doesn't have the bootloader unlocked. So, no TWRP.
Sent from my LG-H910 using Tapatalk

koppee1 said:
I had that problem on an old note 4. But not a drastic a jump in percentage. Brought it to Samsung and they just changed the battery and the problem went away.
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Click to collapse
I heard similar issues when I had my Note 4, but in this (using a new Android OS that not many other phones have yet), I wasn't sure if this was hardware or software. I really hope the second battery fixes the problem!
Sent from my LG-H910 using Tapatalk

spexwood said:
I have the ATT V20, which doesn't have the bootloader unlocked. So, no TWRP.
Sent from my LG-H910 using Tapatalk
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Click to collapse
I would still try a full reset if you haven't yet..

Swizzle82 said:
I would still try a full reset if you haven't yet..
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Click to collapse
I'd rather not since I don't have the time to re-setup all the programs I need for work. It takes several days to get everything up and running again, and after having to do this 2x already this past month thanks to the Note7, I don't want to go through it all AGAIN. Its too much of a hassle and shouldn't be necessary since this is a new phone. I mean, w y reset a new phone that's only a couple weeks old?
Sent from my LG-H910 using Tapatalk

spexwood said:
I'd rather not since I don't have the time to re-setup all the programs I need for work. It takes several days to get everything up and running again, and after having to do this 2x already this past month thanks to the Note7, I don't want to go through it all AGAIN. Its too much of a hassle and shouldn't be necessary since this is a new phone. I mean, w y reset a new phone that's only a couple weeks old?
Sent from my LG-H910 using Tapatalk
Click to expand...
Click to collapse
Do as you wish I understand, just a suggestion..

Swizzle82 said:
Do as you wish I understand, just a suggestion..
Click to expand...
Click to collapse
Thanks. I only factory reset as a last resort. Ill do it if nothing else fixes the issues (including a new battery).
Sent from my LG-H910 using Tapatalk

My phone won't do anything. The screen doesn't show anything i cant feel vibrations.

my phone wont do anything. i plugged it in a wireless charger and it shows as charging but nothing is happening. it doesnt turn on or do anything.
the last thing i did on it was flash android 12 rom, and it kept shutting down due to heating up. after that i flashed back to a one ui rom where it was fine, then it shut down and now this.
please help.

Welcome to XDA
Is the battery good?
Personally I wouldn't have upgraded it past 9...

blackhawk said:
Welcome to XDA
Is the battery good?
Personally I wouldn't have upgraded it past 9...
Click to expand...
Click to collapse
I mean, the battery was fine. It just used to overheat without me doing anything and it'd shutdown.

hnhgxngxhnyhnythythhy said:
I mean, the battery was fine. It just used to overheat without me doing anything and it'd shutdown.
Click to expand...
Click to collapse
Might have fried something on the mobo like the SOC. Forced thermal shutdowns aren't good.