Database Users

[Q] HELP!! Phone died, wont charge

Hi. I loved this phone till today.
My phone died while working, went home to charge it..and it wont charge, plug it in to several different outlets nothing works. No lights, nothing..
Any suggestions?

See this thread and good luck.
http://forum.xda-developers.com/showthread.php?t=2013977
Sent from my Nexus 4 using xda app-developers app

chelsierae said:
Hi. I loved this phone till today.
My phone died while working, went home to charge it..and it wont charge, plug it in to several different outlets nothing works. No lights, nothing..
Any suggestions?
Click to expand...
Click to collapse
Where you running Faux's kernel?
Can you hold down the Vol +/- and then plug in your USB cable? If it is a red blinking light then I think it's a battery issue not supplying power to your motherboard.

elliot.newnham said:
Where you running Faux's kernel?
Can you hold down the Vol +/- and then plug in your USB cable? If it is a red blinking light then I think it's a battery issue not supplying power to your motherboard.
Click to expand...
Click to collapse
I dont even know what Fauz's Kernel is... I tired that and I still get nothing

chelsierae said:
I dont even know what Fauz's Kernel is... I tired that and I still get nothing
Click to expand...
Click to collapse
I believe it is the phone, not the charger. Grabbed my old phone that uses the same charger, and it charges that phone instantly..Not very happy with the Google Nexus 4

chelsierae said:
I believe it is the phone, not the charger. Grabbed my old phone that uses the same charger, and it charges that phone instantly..Not very happy with the Google Nexus 4
Click to expand...
Click to collapse
This happened to me today. The battery indicator is incorrect, and shuts down before notifying you sometimes.
Phone shut down on me randomly and wouldn't turn back on today. Plugging into the wall didn't help. It was only when I plugged it into my PC and let it charge for 5 minutes that it came back. Scary bug.

chelsierae said:
I dont even know what Fauz's Kernel is... I tired that and I still get nothing
Click to expand...
Click to collapse
No need to type in bold...
Faux is a developer who is putting together a new kernel for our device, basically it allows one to modify the 'engine' of our phone.
I think the consensus here is there is a manufacturing defect in your phone and a lot of other phones. It seems like this issue is connected to running a custom kernel but there are reports of 100% stock phone bricking (like yours)
It's time to call up google, nothing we can do from here.

elliot.newnham said:
No need to type in bold...
Faux is a developer who is putting together a new kernel for our device, basically it allows one to modify the 'engine' of our phone.
I think the consensus here is there is a manufacturing defect in your phone and a lot of other phones. It seems like this issue is connected to running a custom kernel but there are reports of 100% stock phone bricking (like yours)
It's time to call up google, nothing we can do from here.
Click to expand...
Click to collapse
I thanked you on accident, you didn't deserve it. There is no evidence that his phone is bricked, a user above reported the same thing happening and how he resolved it.
Also, he can type in bold if he wants to.

I hope the OP issue gets resolved. Wish you all the best buddy!

I'm having the same issue. Except this happened when I pulled the device new out of the box. Can't even get it to stay on long enough to get into bootloader mode. :-/ RMA time

Good luck on fixing the problem.
Sent from my Nexus 4 using Tapatalk 2

Red Light Of Death - Should I Be Concerned?

Hey Guys.
I'm very excited to get my nexus 4 but I've been hearing a lot of people talking about the RLOD!!
What causes this problem and is there anyway to fix this??

S.H.A.D.E said:
Hey Guys.
I'm very excited to get my nexus 4 but I've been hearing a lot of people talking about the RLOD!!
What causes this problem and is there anyway to fix this??
Click to expand...
Click to collapse
the red light is just caused by using your phone the wrong way. it won't happen if you do not flash a custom rom anyway.
And if you flash custom roms it won't happen either, if you follow the standard steps you have to follow on every android phone. It's just a brick that can happen on every android device if you flash broken .zip's or anything else comparable .
People who claim this happened from a moment to the next without them doing anything wrong, are just not telling the truth. Even IF this would happen this way(not your own fault), you could easily get a replacement from google without any costs or problems.

Thanks for the reply,
Ive heard many people who had a completely stock and unrooted nexus 4 say they got a red light of death too... The problem is, I don't live in any of the countries that have playstore devices. So I'm having somebody from the US bring it for me...

S.H.A.D.E said:
Thanks for the reply,
Ive heard many people who had a completely stock and unrooted nexus 4 say they got a red light of death too... The problem is, I don't live in any of the countries that have playstore devices. So I'm having somebody from the US bring it for me...
Click to expand...
Click to collapse
propably you could check the rev of those n4's (asking them in pm's). i can't imagine rev11+ have this problem anymore. I still won't believe this happened without a reason

S.H.A.D.E said:
Thanks for the reply,
Ive heard many people who had a completely stock and unrooted nexus 4 say they got a red light of death too... The problem is, I don't live in any of the countries that have playstore devices. So I'm having somebody from the US bring it for me...
Click to expand...
Click to collapse
These many people you speak of? That's not even half possible for it to RLOD on pure stock without any mods it's just to save the hardware its the phones built in safety net...unless you plan on OCing to 1.98ghz and set it to performance and run antutu that will most likely do it for you
Sent from my Nexus 4 using xda app-developers app

Hi,
It happened wih or without running an Antutu bench. Yes some users have reported the red light on stock with rev 10 or with rev 11.
Antutu is not directly the culprit, it's due to a bad read of battery stuff (in a stress condition even at 50% battery the phone think you are out of battery then shutdown + heat, there is an issue with some phone about the battery contact inside the phone). If it's happen you can try to let your phone in charging for hours, sometimes it's enough. But the better thing is to open your phone then disconnect / reconnect the battery.
It happened also while flashing something in recovery mod, 40% battery, flash then reboot and bam red light...
Also on a French forum it happened during a download while browsing...
I agree we not know all the conditions together when it happened but it seems this is slightly random. Maybe a combination of circumstances...
It's "just" related to some weird battery reading issue.
For example I ran a bunch of Antutu bench with / without overclocking at different battery % (even at 11% battery ) without any issues, at least until today...
Take a look here: http://forum.xda-developers.com/showthread.php?p=36304348

So does this problem happen to everybody or is only a minority of nexus 4 users affected? Do you think google would've fixed this problem by now??

Re,
It seems it's a minority phones who are concerned...
I don't know if Lg / Google have worked on the problem. As I read maybe the rev 11 are less concerned? But I'm not sure...
Don't be afraid, use your phone and if that happens rma or open your phone, there is always a solution

Alright, read a lot of threads and it looks like removing the battery and starting it again works perfectly. I also read somewhere that its due to too much pressure being applied on the thing the connects the battery to the phone.. - http://forum.xda-developers.com/showthread.php?t=2128392&highlight=red+light+of+death&page=2

Yes, it's what I said, ah I forgot this link.
When you search, you find

Happened to me a few days after I got it (100%stock, not rooted); I left it charging for some time and it turned on again like nothing happened. Didn't happened since.

Only time I had it was when I first rooted.
It got stuck in a boot loop on the "X" screen and when I rebooted to clear the cache the red light flashed and I had to hold the power button in to turn it off.
Booted into recover fine after that.
No issues since.

Alright that's good to hear. When did you guys get your nexus?? Maybe google resolved this issue.

I got mine very recently ordered in late February. It did red light because I flashed a mod which was for the nexus 7 but i flashed it on my nexus 4. I just went into recovery and flashed stock, phone was fine.
Sent from my Nexus 4 using xda app-developers app

Alright. Sounds good.

Got mine last week but it's a Rev 10 not an 11.

indoh said:
the red light is just caused by using your phone the wrong way. it won't happen if you do not flash a custom rom anyway.
And if you flash custom roms it won't happen either, if you follow the standard steps you have to follow on every android phone. It's just a brick that can happen on every android device if you flash broken .zip's or anything else comparable .
People who claim this happened from a moment to the next without them doing anything wrong, are just not telling the truth. Even IF this would happen this way(not your own fault), you could easily get a replacement from google without any costs or problems.
Click to expand...
Click to collapse
That is not true.. Red light appears due to some small chip next to the battery which is hardly put in there, you just need to release some pressure and it will be fine.. (there's a youtube video)

Loosen the screws?? Do you have a link to the YT video?

Ordered mine when they were first available, got it 2-3 weeks later (end of November).

Got a bricked rev11 301k here. Tried everything untill I get my replacement (takes a bit longer since I live in holland). Check out http://forum.xda-developers.com/showthread.php?t=2177787&highlight=nexus+4+bricked for more info. Now I try to drain the battery and let it charge (put it in a cold enviroment for a full 24 hrs. Got past the google logo for half a second and saw the stock recovery before it went dead again

Nexus 4 Shuts Down Randomly and Battery Problem

Help people, I have the nexus 4 for over 3 weeks and great but a few days ago when it was nearly full battery (around 80% or so) suddenly shutted down and I couldn't turn it back on until after 1 min or so plugging in. I did not care about it the first time ... But today, after having it charging about 2 or 3 hours I disconnected the cable to use the phone and the battery dropped from 90%+ to 8%, so I connected the cable and put it back to 100%, used it for 1 hour and it suddenly dropped back to 2% from 80% and then shutted down instantly.
Here are some screens.
Help please, and yes I have used the search function, but didn't find the solution on other posts.

tacwold said:
Help people, I have the nexus 4 for over 3 weeks and great but a few days ago when it was nearly full battery (around 80% or so) suddenly shutted down and I couldn't turn it back on until after 1 min or so plugging in. I did not care about it the first time ... But today, after having it charging about 2 or 3 hours I disconnected the cable to use the phone and the battery dropped from 90%+ to 8%, so I connected the cable and put it back to 100%, used it for 1 hour and it suddenly dropped back to 2% from 80% and then shutted down instantly.
Here are some screens.
Help please, and yes I have used the search function, but didn't find the solution on other posts.
Click to expand...
Click to collapse
What apps have you installed lately, maybe there is a rogue one. Install BetterBatteryStats for app behaviour and Cpu Spy for deep sleep issues.
Are you rooted? Custom rom or kernel? Undervolted or overclocked?

gee2012 said:
What apps have you installed lately, maybe there is a rogue one. Install BetterBatteryStats for app behaviour and Cpu Spy for deep sleep issues.
Are you rooted? Custom rom or kernel? Undervolted or overclocked?
Click to expand...
Click to collapse
I'm not rooted, all at stock. I didn't touch the voltages, I didn't do anything. I installed some games (vector, pudding thd, order and chaos) evernote, mega manager, pulwifi.
I'll install betterbatterystats and cpuspy, thank you.
Edit: look what happened to the battery now...
Also I attached a pic of the cpuspy, I can't install betterbatterystats because it costs 2 dollars

tacwold said:
I'm not rooted, all at stock. I didn't touch the voltages, I didn't do anything. I installed some games (vector, pudding thd, order and chaos) evernote, mega manager, pulwifi.
I'll install betterbatterystats and cpuspy, thank you.
Edit: look what happened to the battery now...
Also I attached a pic of the cpuspy, I can't install betterbatterystats because it costs 2 dollars
Click to expand...
Click to collapse
I think there is a free version of BBS on XDA , here http://forum.xda-developers.com/attachment.php?attachmentid=1240843&d=1344068311. Consider buying it on Play in the future if it benefits you.
Battery levels can be inconsistent at times, especialy after deep sleep.

gee2012 said:
I think there is a free version of BBS on XDA , here http://forum.xda-developers.com/attachment.php?attachmentid=1240843&d=1344068311. Consider buying it on Play in the future if it benefits you.
Battery levels can be inconsistent at times, especialy after deep sleep.
Click to expand...
Click to collapse
Here it is, and thanks for the replies.

Look in Partial Wakelocks for the biggest consumers.

gee2012 said:
Look in Partial Wakelocks.
Click to expand...
Click to collapse
I looked but I don't know what does that mean, sorry I'm a little noob. Is there anything wrong with it? I though that was just the sound cause I had it at max while I played after that happened.
Edit: I ordered it by count and the RILJ thing is the one at the top. (its not the attached pic)

tacwold said:
I looked but I don't know what does that mean, sorry I'm a little noob. Is there anything wrong with it? I though that was just the sound cause I had it at max while I played after that happened.
Click to expand...
Click to collapse
I see nothing abnormal on usage, just use the phone and see if this behaviour continues. If it does better do a factory reset or reflash the latest factory image.

gee2012 said:
I see nothing abnormal on usage, just use the phone and see if this behaviour continues. If it does better do a factory reset or reflash the latest factory image.
Click to expand...
Click to collapse
Okay I'll uninstall the latest apps I installed and will use the phone normally, if this happens again I'll do a factory reset and if the problem continues I'll call google. Thank you :good:

I wish I could be more help but I had the exact same issue. I could not figure out what was wrong with it but I had previously broken the screen and sent my N4 back to LG for repair. Since it was still under limited warrenty from that repair I sent it back to them again. They said they replaced the charger connector. I got it back and it seems to work fine now.
My issue started after I updated to 4.2.2 I believe. I don't know the root of it but my advice would be to do what you said and call Google or LG.

stones1313 said:
I wish I could be more help but I had the exact same issue. I could not figure out what was wrong with it but I had previously broken the screen and sent my N4 back to LG for repair. Since it was still under limited warrenty from that repair I sent it back to them again. They said they replaced the charger connector. I got it back and it seems to work fine now.
My issue started after I updated to 4.2.2 I believe. I don't know the root of it but my advice would be to do what you said and call Google or LG.
Click to expand...
Click to collapse
Thank you anyway

Similar issue here - I've been using the same apps since I first installed them after N4 purchase (meaning no new apps/games installed in the last few days and no settings changed). Took a nap for a couple of hours and woke up to see N4 completely dead - 0% batt. Charging it now and looking at partial wakelocks etc, havn't seen anything out of the ordinary. Hopefully it doesn't occur again but in the meantime still looking for a reason why this would suddenly happen.

Are you guys using the stock chargers? And charging through mains?

Rizy7 said:
Are you guys using the stock chargers? And charging through mains?
Click to expand...
Click to collapse
Yeah, am on stock JB 4.2.2, unlocked and rooted though, no other change like new roms flashed or anything. I use the stock charger and charge through mains.

I think there have been a few threads with this issue and nexus4s even prior to 4.2.2 and supposedly it was hardware. I called support while talking it through she had heard a few similar cases and it seems to be a hardware/software design issue. My wonder is how can I enforce 'never deep sleep' because my kernel doesn't seem obey.
I woke up this morning with the indicator light on but phone dead requiring reset (charged though - if not overly so). Just now it died again while sitting on my desk at 80% charge and deep sleeping again.
---------- Post added at 06:24 PM ---------- Previous post was at 06:13 PM ----------
Guiding.God said:
Yeah, am on stock JB 4.2.2, unlocked and rooted though, no other change like new roms flashed or anything. I use the stock charger and charge through mains.
Click to expand...
Click to collapse
I've read in a few places today the stock charger has been causing a lot of the charging issues and plan to switch to my old g2's charger tonight

Just RMA'd my nexus for powering off for no reason - would do it a few times a week (and extremely buzzing earpiece - which I was living with), never had a problem putting it back on though or had issues by battery levels being eratic) did quite a bit of testing over the space of a few weeks and found it continued to do it after wiping/fomatting everything and on Stock 4.2.2 non rooted and locked BL. As far as I am concerned if its still doing it with the stock out of the box set up its a hardware fault.

Mine has powered off unexpectedly twice in 30 days. Should I get it rmad?
Sent from my Nexus 4 using xda premium

gamepr said:
Mine has powered off unexpectedly twice in 30 days. Should I get it rmad?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Dunno about that its up to you mine was doing it 2-3 times per week. I would wipe everything including userdata, reflash stock rom and monitor before going through the rigmorole of the RMA to make sure its deffo a hardware fault. Biggest problem with the RMA is the fact they put a hold on your credit/debit card for the price of the phone. So basically if you don't have the funds available you are shafted (I think you would have to send off to LG in that case).

I got the same problem ..just that my n4 back cracked while was charging :-\

maybe you should try to flash other kernel and rom if you cant solve this issus. if your N4 is unrooted then just bring it to LG store, you got warranty rite ?

Pretty sure I bricked my Nexus 4

I don't know how I did it. I've been rooted/unlocked for over a month (running CM the whole time) with stock kernel. Last night I upgraded to the 03.24 nightly and everything was fine. 3 hours later I downloaded a franco kernel after some reading and I wanted to try it out. I used Rom Manager to reboot into recovery (like I always do) and install the kernel and as soon as I hit "restart now" apps started FC'ing and my phone never came back on. It never made it to recovery mode or anything. It just died completely and I was around 40-50% battery life.
Currently this is what I'm dealing with:
Holding the power button down for 10 seconds flashes a red LED light. No changed on the screen
Holding any combo of the volume keys (up, down, and both) + power does the same as above
The only time the LED flashes red is when I'm plugged in via USB or AC. Otherwise nothing
I've had to charging for nearly 10 hours now... it's like it has no power at all
When plugging it into a PC I see "QHUSB_DLOAD" in my device manager.
I have the Android SDK and Nexus 4 drivers installed
I have seen NOTHING On the screen since this has happened - no charging animations, fastboot, not even a flicker
I've down A LOT of reading and the only thing I haven't tried is charging it for days at a time and taking it apart (which I'm not opposed to doing) but I'd prefer not to. Is there anything else I can try? Thank you

Sounds like you flashed the franco kernel for the Nexus 7. You aren't the first and probably won't be the last. Unfortunately if you see QHUSB_DLOAD its dead.

You can try to get Google to RMA it. Yeah man, its bricked. Next time make sure you look at what your flashing.

That's what I was afraid of... do you think this is legit? I saw the video and it looks good. Says it fixes phones that don't boot at all. I e-mailed and asked them about my situation but I'm curious if you have heard anything about them?
http://mobiletechvideos.mybigcommerce.com/lg-nexus-4-jtag-brick-repair/

blahblah13233 said:
You can try to get Google to RMA it. Yeah man, its bricked. Next time make sure you look at what your flashing.
Click to expand...
Click to collapse
Not to be an ass but it's his fault for flashing the wrong kernel. Google shouldn't have to pay for his mistakes.
Sent from my Nexus 4

blitzzz3434 said:
Not to be an ass but it's his fault for flashing the wrong kernel. Google shouldn't have to pay for his mistakes.
Sent from my Nexus 4
Click to expand...
Click to collapse
I understand it was my fault. I wouldn't expect them to because it was my fault. Have you heard anything about the legitimacy of JTAG repair?

duckwizzle said:
I understand it was my fault. I wouldn't expect them to because it was my fault. Have you heard anything about the legitimacy of JTAG repair?
Click to expand...
Click to collapse
Most of them are pretty reliable. The one that you linked to, they have their own YouTube channel where people have left pretty positive comments. They seem legit. I'd try them out if you want to be nice and not RMA it.
https://www.youtube.com/user/MobileTechVideos

Yeah its really legit. I got my HD2 Unbricked from there. I flashed a wrong radio and came back with a "RESURRECTED" Bootloader and just flashed a new rom. Its probably different on the Nexus 4.

duckwizzle said:
I understand it was my fault. I wouldn't expect them to because it was my fault. Have you heard anything about the legitimacy of JTAG repair?
Click to expand...
Click to collapse
I would still google them to see if there are actually legit. But hope it all works out for you!

Thanks for the replies everyone. I'm going to send it to them to fix it... I'll post back here with the results so other people can search this thread for answers

its bricked. Next time make sure you look at what your flashing.

I got the red light of death, just charged the phone for around 8 hours and it came back.
Sent from my Nexus 4 using xda app-developers app

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.
Click to expand...
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
Click to expand...
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
Click to expand...
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