yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Q&A, Help & Troubleshooting] Warming87:
Thanks for the help, this has turned out to be very usefull.

My problem related to fix #2, and it was driving me insane. But i want to let you know that before you start opening up your device (which will void the warrenty) and doing a factory reset (which will delete all your data) you should try the third option listed in the OP. I simply turned my N7 off, left it charging for a good 20-30 minutes, just to be safe, and then left it turned off over night, and now it has recalibrated it self.

Again, thanks for the help. Its nice to know that for all the people moaning about the issues, some are actually trying to fix them!
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
You're welcome! Good to hear that your N7 is alive and well.
[Nexus 7 Q&A, Help & Troubleshooting] HazerX:
Greetings, all.

I found this thread because I bought a refurbished 2012 Nexus 7 last week and it arrived today dead as a doornail right out of the box. ;)

Holding power resulted in nothing. I plugged it in and saw some power getting to it as the screen lit up a little. It didn't display anything it just went from dead black to "I'm getting some juice black". I had read up on these tablets after I made my purchase so I was aware to a small degree of these problems so I gave it a few minutes and tried to boot it up which resulted in the screen flickering and trying to do something every few seconds but got nothing. At this point I'm thinking I bought a brick. I've had nothing but good luck with refurbished electronics over the course of my life, but everyone is due up for a lemon occasionally. I figured my time was up.

I read about the loose battery plug and promptly opened her up to see if that was the problem. Surprisingly this refurbed tablet will not let you unplug the battery. It's hard wired. It appears to have a very similar plug to ones I saw in videos on Youtube, has all the battery wires running into a black housing that plugs onto some metal prongs. There are no prongs on this one. Everything is the same, just no prongs to plug onto. So that wasn't the problem.

After trying all the other solutions and it charging (at least plugged into power for 20 - 30min) I tried yet again to hold down the power and volume and FINALLY the charging battery screen popped up and it started charging. I gave it another 20min or so and finally booted it up.

Seems to be working fine now. Updated my installed apps, downloaded some other apps that I use on other devices and even did the 4.3 update and all seems well.

Let us hope it remains that way. :good:
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Good news! Congrats!!

If you want it to stay trouble-free, be sure to turn it off every now/then, and leave it off for an hour or two. You can charge it during this time. Both the 2012 and 2013 models seem to need the "down-time" to recalibrate the battery. I discovered this and updated the OP early this year after repeated occurrences of this issue. Now that I turn it off occasionally (once a week for me) it's been perfect since.
[Nexus 7 Q&A, Help & Troubleshooting] HazerX:
Will do! I read quite a bit in this thread before I posted and that was def one of the things I'll be sure to do weekly. Likely nightly. ;)
[Nexus 7 Q&A, Help & Troubleshooting] cntchds:
Hey, Just wanted to give a major thanks to you guys! I have been battling with my dead Nexus 7 for months trying to figure out what was wrong with it. I got an RMA (I think that's what it's called) from ASUS when it first died on me, but I was a little grumpy that they were going to make me pay for the shipping... So the month ran out.

Plugging it in to my computer turned it on within a couple minutes. Thanks a ton guys and gals!
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Happy to help.

Consider hitting the THANKS button!
[Nexus 7 Q&A, Help & Troubleshooting] cntchds:
I thanked the guy who said to plug it into the PC. Consider adding that to the OP and you could get one too!

Sent from my Nexus 7
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
:)

Didn't know that this was a fix that was repeatable.

Now I know.

Will do!

*Update*: Added.
[Nexus 7 Q&A, Help & Troubleshooting] cntchds:
From what I've read (and I've read most of the thread) I am at least the third person who had the flickering screen with the back light turning on with the standard charger, but no button combo would start it. Even having it plugged in for days wouldn't do anything, and as soon as it was unplugged the battery was completely flat. Tried unplugging/replugging in the battery with no success. As soon as I plugged it into my computer the Google splash came on. Flashed 10.2 to see if that prevents it from happening again(it was on 4.2.2 before.)
[Nexus 7 Q&A, Help & Troubleshooting] manu1991:
Hi. I have a 16GB WiFi only model. In the morning, I was using it running Kingsoft Office and it was lagging a bit. So I ran lagfix (which after a bit of googling, I have come to know was pointless in Android 4.3 (it was running the CM 10.2 nightly), anyways, the battery was at almost 3/4 level and suddenly it turned off. I haven't been able to turn it on again. I had just charged it for 2-3 hours yesterday and not used it since. Could the battery still be at fault? What other error could be there? I have tried power button for long duration, power + volume (both up and down) and doing all this while plugged in etc. Nothing happens on the screen, not even the initial logo.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
There are more methods listed in the OP than just the ones you mentioned here.

I suggest carefully performing them all.

There's a fix in the OP for just about everyone.

Good luck.
[Nexus 7 Q&A, Help & Troubleshooting] manu1991:
I have tried pulling the battery out and reinserting it. The connector seems tight enough but I still put it back properly. I also tried booting without the battery. Nothing happens in either case. If I connect via USB to PC, I get a 'this USB has malfunctioned' error.
[Nexus 7 Q&A, Help & Troubleshooting] Deusx Machina:
This. I have to admit I had given up trying to fix my nexus when it refused to turn on at all. Exactly as described above happened to me: flickering screen on the original (or any usb charger) and unable to get to the bootloader. Today out of the blue I decided to try to fix it ( it had been in my "broken devices" drawer for months now) and I stumbled upon this thread. I had tried everything described in this thread EXCEPT connecting it to the computer, so I figured, what the hell, worth a shot. When I connected it the computer didn't even recognize a usb device was plugged in, but I decided to leave it connected for a bit (a minute or two). Then I tried powering on - nothing. Finally I tried powering on into the bootloader and TO MY AMAZEMENT it loaded. After that powering down from the bootloader and reconnecting it brought up the charging battery icon. I'm not embarrassed to say an audible "Holy Crap!" came from me when it happened.

Thanks to you and everyone on this thread for helping me out! I honestly though my Nexus 7 was done for, gotta love XDA!
[Nexus 7 Q&A, Help & Troubleshooting] dmok:
Turning off worked for me, thank you!
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Good to hear!

Enjoy your N7!

-bk
[Nexus 7 Q&A, Help & Troubleshooting] nickmv:
I'm having the prolonged-100% and early turnoff issue here. Ran a factory reset earlier, and am now draining the battery with a quad-threaded "yes && yes && yes && yes" command on a terminal emulator. Fingers crossed that it'll fix it.

If not, I'll leave it turned off for a day with low battery. Maybe it'll fix it.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Have you tried all of the procedures in the OP?
[Nexus 7 Q&A, Help & Troubleshooting] nickmv:
It's fixed! Or at least it's down to 3% and draining more.

What I did:

1. Factory Reset and wiped /system as well (after backing up my apps).

2. Reinstall ParanoidAndroid 3.99 RC2 + GApps

3. Boot back up and restore my apps and settings

4. Open a terminal emulator and typed "yes && yes" and ran that. It essentially floods the terminal with a simple "y" output, but literally maxes out the CPU in doing so. Each additional && yes will add another thread to the process.

5. Let this run down to 20%.

6. Starting at 20%, I powered down, and back up. Then ran step 4, rebooting every 2% drain.

I'm now down to 2%, and going to plug it in at 1%, and let it charge back to 100% and then unplug to see if it hangs on 100% for an extended period of time.

Thanks for the tips! I'm not sure if all that rebooting and 2% incremental drainage really did the trick as much as fac-resetting/system-wipe did and reinstalling the ROM, but I'm kinda superstitious and have a trip in a few days, so I didn't want to have to deal with it then.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Excellent!

At the risk of sounding like a broken record, don't forget to turn your N7 off every now and then, and it'll likely stay 100% trouble-free.
[Nexus 7 Q&A, Help & Troubleshooting] veritasaequita:
wanted to see if anyone had any input that might help out. ive tried everything ive read in the op and in and out the forum. heres what happened. months back after getting my nexus when the first "install ubuntu on your 7" thread poped up and i did. long story short i fell asleep with it on my lap that night and woke to a black screen and dead battery. i see no animations, anyone else know where might be a good start or should i just let this one go? thanks, veritasaequita
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Sorry to hear this. If you tried the fixes in the OP and you didn't get resolution, I'd think that it might have more to do with Ubuntu than the issues discussed in this thread - just guess'in. Try creating a thread that specifically addresses the unique variables in your scenario. You might get more support/ideas.

Good luck!
[Nexus 7 Q&A, Help & Troubleshooting] ibanezrudi:
This is worrying me a lot.

Ok so here is what happened:

Got N7 2012 in 1st week for September this year. Worked extremely well until yesterday.

Went to work yesterday morning at 100% charge. It ran down to 25% ish at about 4pm, so I decided to charge it, but it would not charge. Tried various cables and adapters, and wall sockets and laptop and desktop usbs. Other phones and tablets charged properly on those. Got back home yesterday and it showed a 3% charge. Plugged it into a random charger at my home, it showed charging instantly as if nothing was wrong. I left it there and went off to have dinner, when I got back it was turned off and the white battery charging animation was on. It did not power on, even in bootloader mode. After a while, it stopped showing the battery icon, screen went blank, on trying to power on it showed the battery charging screen for 2 seconds and went dead again. Stopped showing the white battery screen altogether. Charged it overnight but no help. I paid a good deal of money (even though its the entry level 16gig model) that amount is more than a month's salary for me and such behavior from the device is very distressing. I do not even know if Asus have an official service center here in India. Please advice.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
I KNOW I have to sound like a broken record by now (very sorry for that!), but did you thoroughly read the OP and perform every suggested fix?

I didn't see any indication in your post that you had.

-bk
[Nexus 7 Q&A, Help & Troubleshooting] ibanezrudi:
Yes sir, yes I did try all of that multiple times over :(

Sorry for not being clear about that in my post.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
The fixes in the OP are the highly-repeatable solutions that work in almost every case. Sorry to hear that they didn't work for you. You might want to read through this entire thread to see if anyone posted a one-off idea that happened to work for them.
[Nexus 7 Q&A, Help & Troubleshooting] ibanezrudi:
Alright, I'll go through it one more time. Thanks.
[Nexus 7 Q&A, Help & Troubleshooting] timmytron:
Has anyone had trouble with the device just shutting down and not coming back on? No charging indicator, no bootloader, nothing. Pulled the battery to check voltage (about 4.5) and connection is secure.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Yes - that is one of the symptoms addressed in this thread. Pulling the battery is one of the fixes for that problem, but that apparently didn't do the trick for you.

Although it's a lengthy post, the OP details a number of fixes related to N7's turning off. I'd suggest trying each of the suggestions in the OP.
[Nexus 7 Q&A, Help & Troubleshooting] timmytron:
I have done all listed. Just trying to find out if anyone else has had the same issue. Have had no troubles with the battery what so ever.
[Nexus 7 Q&A, Help & Troubleshooting] striker59:
Its sad that I thought I was purchasing a top of line 7" tablet to have these problems. I'm hoping the next update 4.4 kit kat fixes this issue. I wish I had read about this problem before purchasing it. Oh well fingers crossed on the update.

My problem that happened just this morning, reading a digital book. Message comes up to plug into charger, less than 15%. Trying to finish the chapter but within a couple of minutes it shuts down. I used to be able to finish the chapter but not today.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Having Google address the main issues in this thread is the right way to go - agreed. I suspect that these issues probably only affect a relatively small number of users. But if you have a unit that has demonstrated these issues, just consider turning it off once in a while - maybe once a week, or every other week for an hour or so while it's charging. For the majority of owners (me inlcuded) this "fixes" the problem.

Good luck!
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Having the N7 turn off and not turn back on is a main symptom addressed in this thread, so yes, plenty of people have had this exact problem. Sometimes it's related to the battery, sometimes not. You said that you've tried all of the suggestions in the OP which are battery-related and non-battery-related. For the few folks that continue to report issues after carefully following these instructions, the next step is usually to return the device.

If you found a fix in the mean time, please let me know. If it's a repeatable fix for others, I'll add it to the OP.

Good luck!
[Nexus 7 Q&A, Help & Troubleshooting] ev1lchris:
I fall under category #3. It will not turn out, I keep it plugged in and there's no battery icon, and since the device will not even get to the Google screen ADB Fastboot and Recovery are not options for me.

I get mixed responses to this issue. One person has said that it's basically a dead Nexus 7. However, reading the forums it seems that people have been able to boot into Recovery or Fastboot randomly.

Right now the PC recognizes it as an APX (I think that's the term) device. Unfortunately the Nexus 7 doesn't have any APX drivers.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Sorry to hear this. Have you performed all of the fixes in the OP?
[Nexus 7 Q&A, Help & Troubleshooting] ev1lchris:
Yes, pretty much. Has anyone from Category 3 ever recovered?
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Absolutely! Only a small number of people who have posted in this thread have had to actually return their N7's. The majority of N7 owners resolve their issues after following the OP *to the letter*.

In some cases, owners don't really read through the instructions, consider this thread no help at all, go to some other forum/site that inform them of some fix that's already listed in the OP, they fix their N7 and come back here to report a "new" fix, only to find out that they overlooked it at the start. This process is a tad frustrating to observe.

It has also happened that a user discovers a truly new/unique new fix, and if the fix is repeatable, it gets added to the OP.

So, comb through that OP and really perform every suggestion. You may save yourself a lot time.
[Nexus 7 Q&A, Help & Troubleshooting] ev1lchris:
Here's what I've done:

Hold down power button for 30+ seconds

Hold down power + volume down 30+ seconds

hold down power + volume up + volume down 30+ seconds

Open up back, unplug battery, wait 30+ seconds and reconnect

Plug into charger overnight

Plug into computer

I think I've pretty much cleared all the bases. I'm at a loss.
[Nexus 7 Q&A, Help & Troubleshooting] ynoyasha:
Battery instead of increasing the battery charge, its decreasing..

Hi All,

I've read the OP, done everything written there, but no luck. I've ready all the replies here and comments but never see anything same as my problem. The battery instead of increasing the charge, its actually decreasing the charge. Tried the battery pull, no luck! Tried the factory reset, still no luck. Tried to charge it direct to the outlet, still no luck and charged it using my laptop still no luck!! I even purchased a battery..Not sure if anyone here has the same problem as mine and has a solution.
[Nexus 7 Q&A, Help & Troubleshooting] guitar1969:
I am in the same boat - I can't recover - When it went bad, screen went blank but it looked like it was trying to boot. I got to the bootloader, and picked the option to turn off, then tried to charge with no luck. Can't get bootloader to even come up now . I spoke to Asus yesterday and they said I would need to send it in, which doesn't make sense since I am out of warranty and am not going to pay $200 for them to fix it.

I am wondering if the battery is so dead that it can't be charged via the USB - Wondering if there is any way to charge the battery manually to get enough juice to boot up, then the USB charging would work again.

I am about to try and file a claim on my credit card for it (extended warranty) but they want all these things, includingh a written estimate, which I can only get by sending to Asus. Also, need a copy of the Nexus 7 warranty card, and surprisingly it is nowhere to be found on the net - I have searched quite a bit.
[Nexus 7 Q&A, Help & Troubleshooting] pokemaniac15:
N7 2012 Battery Life.

I'm having problems with my Nexus 7 2012. It shutdowns prematurely in 10% and it flickers. I tried reconnceting the battery wire at the back and it only fixes the flickering (Thank God for that!). Also did a reformat with SDK platform tools with 4.3 image and it still doesn't work. I put it on charging, when I opened it, it was on 67%, I shut it down and wait for a bit and when I turned it on, it's now on 54%. A sudden drop! And I don't know what caused it. Can someone help?
[Nexus 7 Q&A, Help & Troubleshooting] guitar1969:
Well I was able to manually charge the battery to 50% with a spliced USB cable and staples as leads applied to the 2 sets of red/black connector cables. Nexus 7 boots up but I still cannot charge - Seems my issue may be a bad USB port.

If there was wireless charging availabe for this model I would just go that route, but no luck on the 2012 version. Guess I will still have to try to file a claim under my credit card company. Does anybody have a copy of the US warranty card they could scan and PM me? I would really appreciate it.
[Nexus 7 Q&A, Help & Troubleshooting] rtiangha:
You could try to track down a Nexus 7 2012 dock and charge from that as it uses the POGO pins. I too have a busted USB port and that's the only way I can charge mine now.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Did you perform all of the fixes in the OP?
[Nexus 7 Q&A, Help & Troubleshooting] yongzhenkit:
tx

it happened to me since 4.3 update and happened 2 times, all the symptoms and the after effects are here too so i unplug the battery and its fixed. 2nd time i was too lazy to do it so i just left it charging for about 20 mins before it was able to appear the 'x' logo. the battery was 27%, same as shut off. so i went to battery settings, refreshed it, unplugged the charger and then the shutdown popup appeared and when i looked to the top, voila, the battery has been recalibrated to 0%.a fix i found is to install battery full notification from playstore which will notify you by making whatever sound stream you choose when it is truly full. from what i see, it stays at 99% a long time before the notification appear. hope it helps. :o

---------- Post added at 05:14 AM ---------- Previous post was at 05:08 AM ----------

im guessing google tried to fool people into thinking that they have 'improved battery life in the new update' by doing this but they did not expect this.hmm:rolleyes:
[Nexus 7 Q&A, Help & Troubleshooting] flibberdeejibit:
I have inherited a broken, out of warranty nexus 7.. I don't have the original charger, the owner tells me that it ran out of batteries and would never power up again. He suggested it might need a new battery, but I googled before ordering and came across the issues enumerated in this thread being discussed all over the internet. I'm convinced now that a new battery wouldn't resolve my issue, so I don't really want to waste money on it. The device is dead as a doornail, no charging icon or anything like that, no backlight, nothing but a black screen. I've read through this thread in it's entirety, here's what I've tried so far:

- Opening case, reseating battery cable (Left it out for at least 2-3 minutes)

- Charge for an hour, unplug, replug, power button for 20 sec

- Charge overnight, unplug, replug, power button for 20 sec

- Plug into PC, power on for 20 sec

- Power button and up for 20+ sec

- Power button and down for 20+ sec

- Desperation kicks in, all buttons for 20+ sec

- Checked that display cable is in firmly

- Checked usb power ribbon cable, looks fine too.

- Applied power with the battery unplugged, then reattached the battery and tried to power on again.

- Begging

I am currently applying power to the unit with the battery unplugged. Not holding out a huge amount of hope here :( I was unable to factory reset because I can't get the thing to power up at all. Any other ideas? It's out of warranty so RMA is out of the question. I don't have access to the original charger, but I"m using a known working blackberry playbook charger which is same voltage and amps. I don't know anybody else with a nexus 7 so can't borrow a charger and I'm reluctant to spend 20 stg on a charger because I really don't think that's the issue.

Any ideas before I resign myself to a paperweight?
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Did you try connecting to a PC via USB? Not sure if you listed that (just woke up, sorry, still bleary-eyed) but some owners have had success with this.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Sounds good. Thanks for sharing.
[Nexus 7 Q&A, Help & Troubleshooting] ev1lchris:
Tape down the power button and leave it pushed in for hours.
[Nexus 7 Q&A, Help & Troubleshooting] billykxda:
Not aware of this fix.

Let me know if it works and I'll add it to the OP.

Thanks,

-bk
[Nexus 7 Q&A, Help & Troubleshooting] yongzhenkit:
sigh

sigh now after charged full, its been 100% for 6 or so hours with light internet usage.and its getting late.time to turn it off and see whats up tomorrow.here's hoping that 4.4 update comes faster and fingers crossed fixes this as this issue only happened for me like 2 weeks ago.:(
[Nexus 7 Q&A, Help & Troubleshooting] flibberdeejibit:
Thanks for even taking the time to look! This thread is a great resource, thanks for that! Anyway, yes, I tried with both a PC and mac. PC picked up something, I can't remember the letters, but no driver, mac doesn't see it at all. PC sees it with and without battery installed.

---------- Post added at 06:49 PM ---------- Previous post was at 06:45 PM ----------

I'll give that a shot this evening, thanks!
[Nexus 7 Q&A, Help & Troubleshooting] flibberdeejibit:
Just an update, the tape for a few hours idea didn't resolve my issue, anyway, still sitting on a dud. I'm thinking mine is one of the unlucky ones :(
[Nexus 7 Q&A, Help & Troubleshooting] yongzhenkit:
update

just to update that after i turn it on when i awake, the battery has resumed to normal depreciation. it dropped straight to 77% from stagnant 100% yesterday. and is fine since.will update if anything