Got my Asus Nexus 7 (2012) to finally charge and boot up! - Nexus 7 Q&A, Help & Troubleshooting

Dear XDA,
Well please bare with me for a bit as a explain my situation. Back in 2013 I rooted my Nexus 7 using a toolkit. Was running great, but for some reason back in 2014 after loosing battery (to 0%) failed to charge, I forgot about it and left it plugged in for a week, somehow it was alive again! Similarly, 2 months ago the tablet died (0%) and i forgot the charge it for awhile, when I went to charge it, it wouldn't. Lo and behold tonight when i tried to charge it, it booted up fine!! I think its because I haven't been using it or forget about it that it does this! So I decided to use this more often as a testing device while keeping my s7e unrooted. The tablet was laggy and avg said there were some risk. I basically logged off everything, disabled backup and restore and did a factory reset, now its fine but I feel that after a load apps again it will slow down (again). So I am thinking of actually flashing a 6.0 rom (since 7.0 is pretty beta) but I am wondering how I should do it?
It seems I am on Teamwin v2.2.1 for recovery and I am on the Android 4.2.2, SmoothROM V5.0, Build number JDQ39, kernal version 3.1.00-g05b777c. I am planning on using it as a emulator tablet, streaming games from other hardware, media consumption and computing usng gnuroot debian and otg stuff along with using my s7e.
Any help would be appreciated!

Related

[Q] Help! bricked?

I bought a refurbished TF101 about 6 months ago. I rooted the device and tried various ROMs until I settled upon "Revolver 4 by Gnufabio | 4.1.1 Stable". Life was good, no random reboots, no sleep of death just great. I then installed a game called "Dead Trigger" that came up recently on the Play store. The game did not load, crashed without a FC message and so I uninstalled it promptly. Then I started getting video corruption on my Live Wallpaper (Blue Skies). Random reboots soon followed. Time to start over.
I used CWM and wiped the tablet from there (data, cache and Dalvik) and reinstalled Revolver. It did not work. I used the EasyFlasher tool to return my tablet to Stock using the Asus provided firmware from their website (.24). It seemed to work well, as I started over with my "new" tablet and synced to my account, etc, etc, etc. But now I can't use it without it rebooting every 30secs to 1min. It will go into a Sleep of Death on a random basis also. I have not installed any programs on it, I tried not allowing a restore of my Google settings and cannot for the life of me figure out what is going on.
I am unaware of the SBK version, as their is no indication on the tablet of its serial. What vital step am I missing here to revive this tablet? Any help would be appreciated.
Thanks
StevieJake
steviejake said:
I bought a refurbished TF101 about 6 months ago. I rooted the device and tried various ROMs until I settled upon "Revolver 4 by Gnufabio | 4.1.1 Stable". Life was good, no random reboots, no sleep of death just great. I then installed a game called "Dead Trigger" that came up recently on the Play store. The game did not load, crashed without a FC message and so I uninstalled it promptly. Then I started getting video corruption on my Live Wallpaper (Blue Skies). Random reboots soon followed. Time to start over.
I used CWM and wiped the tablet from there (data, cache and Dalvik) and reinstalled Revolver. It did not work. I used the EasyFlasher tool to return my tablet to Stock using the Asus provided firmware from their website (.24). It seemed to work well, as I started over with my "new" tablet and synced to my account, etc, etc, etc. But now I can't use it without it rebooting every 30secs to 1min. It will go into a Sleep of Death on a random basis also. I have not installed any programs on it, I tried not allowing a restore of my Google settings and cannot for the life of me figure out what is going on.
I am unaware of the SBK version, as their is no indication on the tablet of its serial. What vital step am I missing here to revive this tablet? Any help would be appreciated.
Thanks
StevieJake
Click to expand...
Click to collapse
The RR and SoD come standard with asus stock FW for most people, there is a new .27 update you could try that apparently fixes things, but it made things worse for me
The serial number is generally on a sticker next to the charger port of the tablet half, B4O > B60 and some B7O are SBK1, after that are SBK2
If you are SBK1 you can use NVFLASH to clean install the OS
I decided on Stock FW Rooted and CWM with PERI, then Guevors Kernel
So far so good, stable for a couple days now
Thanks for the quick reply. I did try the .27 update OTA update after getting back to Stock. No help.
The sticker in question is missing. Unknown SBK. I used EasyFlasher using SBK Ver1 and it worked to install the Stock .24 OS fine.
I will give the Stock FW Rooted a shot and see if that works
StevieJake
steviejake said:
Thanks for the quick reply. I did try the .27 update OTA update after getting back to Stock. No help.
The sticker in question is missing. Unknown SBK. I used EasyFlasher using SBK Ver1 and it worked to install the Stock .24 OS fine.
I will give the Stock FW Rooted a shot and see if that works
StevieJake
Click to expand...
Click to collapse
If the flash worked with sbkv1, then more than likely the unit is sbkv1. Otherwise, it shouldn't have worked at all . As the other poster said, RR and SoD is pretty common with the stock Asus firmware for some people -- you might try returning to Revolver now that you've gone back to stock, and start on Revolver again with a clean slate.
I am also running the same setup as the previous poster, stock .27, rooted with guevor's kernel. Been that way for only a day right now, so I can't say much about it yet.
Okay, so here is what I have done. I first used NvFlash to flash Stock .24 successfully. I then extracted the ASUS .24 firmware file (zip only) to the MicroSD card which the system took as an update and installed over my good work. It works, albeit with reboots still. I at least got it working and will try some more ROMs (Stock .27 first) with the suggested kernel. I just wish I could get back to the stable Revolver I had earlier.
Thanks for the help and suggestions.
StevieJake
steviejake said:
Okay, so here is what I have done. I first used NvFlash to flash Stock .24 successfully. I then extracted the ASUS .24 firmware file (zip only) to the MicroSD card which the system took as an update and installed over my good work. It works, albeit with reboots still. I at least got it working and will try some more ROMs (Stock .27 first) with the suggested kernel. I just wish I could get back to the stable Revolver I had earlier.
Thanks for the help and suggestions.
StevieJake
Click to expand...
Click to collapse
If you used NVFLASH to get back to stock, you could have just let the FOTA update you to .27
Then you can root and so on after that
NVFLASH returns the tablet to factory settings, ie. as it was when you unwrapped it on day 1
Not good. My tablet seems to be in an internal storage hell. Every Rom I try to install will crash with moderate use after booting. I have tried NvFlash, EasyFlash, Wolfs Ultimate flash and downgrade, every variation of stock HoneyComb and ICS I can find. I cannot keep this thing stable beyond 5 minutes of use. I have tried multiple factory resets and wipes, run "Superwipe Full" multiple times and nothing seems to work. What can I do to recover this tablet before I just give up and send to ASUS (god help me) for assistance? Any help would be appreciated
Thanks StevieJ
Ouch. Sorry to hear about your troubles. Horror stories like this have prevented me from diving into the root and custom rom scene with my one and only tab. [I am leaning towards a Nexus 7 when it comes out, and will perhaps root etc when I get that. I feel like it's a safer endeavour with a non-locked bootloader]
I'm interested in finding out what may be causing all this, so I'll be subscribing to this thread. Sorry I can't provide anything more than good luck to you.
Sent from my Transformer TF101
Ouch is right! I have rooted every Android device I have ever owned and this the first I have ever had this much trouble with. I just wish I could say I did "X" to cause it to happen. Oh well, maybe somebody knows something I have overlooked.
Note: I have Rogue XM Recovery 1.5.0 (CWM-based Recovery v5.0.2.8) running fine on the rom and it reboots into recovery okay.
StevieJake
steviejake said:
Ouch is right! I have rooted every Android device I have ever owned and this the first I have ever had this much trouble with. I just wish I could say I did "X" to cause it to happen. Oh well, maybe somebody knows something I have overlooked.
Note: I have Rogue XM Recovery 1.5.0 (CWM-based Recovery v5.0.2.8) running fine on the rom and it reboots into recovery okay.
StevieJake
Click to expand...
Click to collapse
Have you tried running it without the WIFI on? I went to my folks place with mine and it rebooted all the time as soon as it started up. It turned out to be a WIFI issue with the Dynalink router my parents were running.
Cheers, Matt.
hairy1 said:
Have you tried running it without the WIFI on? I went to my folks place with mine and it rebooted all the time as soon as it started up. It turned out to be a WIFI issue with the Dynalink router my parents were running.
Cheers, Matt.
Click to expand...
Click to collapse
Funny you should ask that. I just NvFlashed 9.2.1.24 and was using the tab with no WiFi, no account information and everything worked just fine. I then enabled WiFi to see what would happen and it still worked, but I had not logged in with any account information yet. It still worked fine, as I was able to surf the web with no problems. I then tried to add my account information and started getting crashes using the Play Store, syncing my accounts, etc. It seems to be linked to updating account information and not just WiFi. I will investigate further
Thanks
StevieJake
Adding an account, even a new account, will bring down the tablet. It reboots until it is only a dark screen that requires APX mode (VolUp +Pwr) to rebuild the tablet. I can get into recovery and also factory reset mode (VolDwn + Pwr), but that is it. I'm so confused
I found a CWM backup I had from back in March. It restored fine, but still had problems that resulted in multiple crashes and eventual death again. Oh Bother!!
StevieJake
Fixed it!
Here is what I did. I was always to get the tablet into APX mode (Vol Up + Pwr) so I NvFlashed 9.2.1.24 from this site:
http://xdafileserver.nl/index.php?dir=Asus/Asus+Transformer+(TF101)/. I did this 5 times, never letting the tablet fully reboot after I got the "success" message upon completion. I then did a data wipe (Vol Dwn +Pwr, then select Wipe Data and then Vol Up, Vol Up) 5 times. I then used the same NvFlash 5 more times and let the tablet fully reboot and entered my Google credentials. I had prepared a MicroSD card with the zip file extracted from the ASUS site that contained the latest firmware (.27) and placed in the root directory of the MicroSD card. The tablet recognized it as a system upgrade and installed the firmware grade with no problems. The tablet rebooted fine and showed the installed firmware. I then did a data wipe as described above 5 more times and then let the tablet reboot fully and once again entered my Google credentials. The tablet now runs all programs without faults, has no video artifacts on the live wallpaper I use (Blue Skies) and is running just great. I am able to update all apps with out errors from the Play Store which was also an issue.
I hope this helps someone to get their tablet back, as I used all the resources on this forum to bring this wacky method to restore my tablet. Thanks to all you unnamed posters for your help
StevieJake
I wouldn't expect flashing the same thing numerous times to have any more effect than the first flash, but if that's what it took for your tab to be re-born, so be it!
Congrats on the fix.
Sent from my Transformer TF101
Not so fast!
Although the tablet did last longer (almost 2 days), it ultimately failed again to an unbootable state. Its back to the drawing board again.........
StevieJake
rootblock said:
I wouldn't expect flashing the same thing numerous times to have any more effect than the first flash, but if that's what it took for your tab to be re-born, so be it!
Congrats on the fix.
Sent from my Transformer TF101
Click to expand...
Click to collapse
It may just be giving up, electronics are stupid sometimes and fail for no reason. I had a brand new HDD that worked for two days, I left the computer off for three weeks and when I turned it back on the HDD wouldn't even spin up :-/ Good luck buddy.
Okay, I'm done. Just got my RMA and am sending this puppy in. Thanks for all the help, I will try to post the results later when I get it back. Glad I made the impulse purchase for the Nexus 7, as I will not be totally without a tablet.
Thanks for all the help again
StevieJake
RMA and back from the Dead!
Well I got it back from ASUS after the RMA. It had a short visit in Texas, was returned promptly and appears to function normally. I never received any feedback from ASUS on receiving the tablet, what was wrong with it, what they did to it or when they shipped it. But its fixed. Running .27 latest firmware and seems to handle everything I can throw at it.
They did a bang up job so far and I am more than happy with their service.
StevieJake

Nexus 7 2012 unrooted - turns on but android won't load

Hi all,
So yesterday I got the alert to update my nexus 7 (2012) unrooted tablet to 4.3.3 which I did. Unfortunately after downloading the update, when restarting to install, an error message came up with the android dude lying on his back and the word ERROR above him.
I restarted the tablet and everything worked fine apart from the fact that the tablet hadn't updated, which I could live with.
Earlier today I went to open the play store but it wouldn't load, the app just said no connection and there was a retry button. Wifi was working fine as I could play other games that need the internet, check twitter etc. So I decided to switch my tablet off and on again.
After turning on, the nexus animation logo comes up (with the 4 colours) and the tablet gets stuck on this page - it won't progress further and actually load android - I've no idea why this is happening. I haven't attempted to root the tablet or anything previously, only ever carried out OTA updates.
Any idea on what I can do please?
Thanks
I don't suppose anyone has any idea's on how I can get my nexus up and running again despite it getting stuck on the animation screen when I first turn it on?
The same happened to me. I had an error while installation of 4.4.3 . Since then, the device reboots, shows me the lock screen for 1-2 seconds and reboots, again and again. I tried the unbricking method with no success till now.
Thanks for the reply.
I managed to get my tablet working by using adb to unlock the bootloader and install the stock ROM again.
Then I locked the bootloader using adb and left it at that.
Only thing was the tablet factory reset itself in the process so I lost all my data etc. Id didn't have a backup which is my own fault I guess.
Sent from my Nexus 7 using XDA Free mobile app

ah well.......my 8013 bricked forever

I had Gnabo v8 running fine of my 8013. Then the battery started draining fast and would not recharge. I had the rom, SU, remove phone, and wifi fix all on my ext SDcard.
Wiped and reflashed all using Philztouch recovery.. Got back to KitKat but no wifi. Flashed the wifi fix again. Now unable to do anything. Can't get to recovery. Battery at zero, so can't use USB.
Oh well..........I am in the market for a new tablet. I might try the Note 12 pro, but not unless they release an official Lollipop version.
Try replacing the battery.
I've just replaced my N8000 battery & it looks like new now
There is always a way back. If you have odin you should be able to reflash stock with it.
If you are looking for a new battery take a look at
http://www.amazon.com/dp/B00AFJ5JF2/ref=cm_sw_r_awd_BYbPub1S17QER
A hand full of people have been saying this is an awesome deal!
All fixed
Once I got my charger/cable problem fixed, I charged, reflashed Gnabo, SU, boot, phonefix, and wifi fix.
Back in business. Ordered a backup charging cable, since I know the one I have must be positioned just right
in order to maintain contact at a break in the wire.
Thanks for all the help/comments/advice.
What a great forum.

Constant reboots for past two weeks, tried to reflash etc and now truly borked :(

Been using my Nexus 10, in a brick of a case for protection, for almost three years with my two kids but for the last couple of weeks it constantly rebooted. I did a factory reset from the Recovery mode and this appeared to help, then a few days later the problem was back, so I decided to reflash the stock 5.1.1 ROM which appeared to go okay but now I've a well and truly borked tablet
I'm now at the point where whenever powered up it just goes into the bootloader (?, droid with his belly open and options for Start / Power Off etc.). No tools used seem to sort the problem out and get me back up and running with a stock ROM. I've the android SDK installed, so can use FASTBOOT from the command line in Windows 7 (but not ADB), and also NRT v 2.0.6 (and have links to the stock Nexus 10 ROM's, but would prefer to use CM 12 if possible).
I suppose what I'm after is a kind soul to try and guide me on the right path to getting stock up and running again so I can go from there
Thanks.

SM-N9005 HLTE - Blacks out (or Shuts down) after flashing DotOS 8.1 Oreo- Help!

I am pretty new to this rooting community, been trying alot of things. But recently I have been flashing alot of ROMs, and clearing memories alot. I installed DotOS 8.1 Oreo, worked fine, but after sometime I flashed Pixel Experience 9 not realising its still unofficial, so I reversed. Yesterday, it started to shutdown (or Black out- unresponsive) every time I turn it on. I thought it was the battery, saw it at 5%. I charged it full. Now it does turn on, but shutdowns suddenly at any point. Sometimes, also on TWRP when flashing Gapps or anything else. I am currently using a
Samsung Galaxy Note 3 SM-N9005 HLTE, with a Chinese fake battery (If that is a possible cause - although it worked fine for a long time). I would really appreciate some help.
Thank you.
EDIT 1: I tried using my old original battery, which kind of inflated and broken, but it did boot up. But now it reboots instead of shutting down. Maybe it is the battery? or something with the device?
Flash stock rom via Odin.

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