Database Users

[Q] Nexus 7 (4.1.2) can't root

Hi I have a Nexus 7 version (4.1.2 OTA).
I wanted to ask what the deal is or what I'm doing wrong. I purchased the full version of Nexus ToolKit 7. According to the instructions I made the unlocked bootloader and I wanted to root but each attempt failed.
I do not know what I could do wrong when root is fully automated.
PS: I also tried to reflash Stock Rom (4.1.2)
I enclose a picture attachments with an error message

IAmNice said:
usb debugging on? Have you checked that?
Click to expand...
Click to collapse
Hi. Yes mam (usb debugging on) have a look to the attachment.
Toolkit me boot into fastboot then reboot then for something to fastboot loaded and back to android and trying to upload the files but nothing superuser is not recorded because of (read-only file system).
have a look on the attachment is there to see everything ...

yep same issue here - problem with the forum regs is unless you have enough posts you can't actually address the issue to the appropriate person can you? Anyway, able to unlock but then is unable to root and rest due to a permissions problem. have tried as administrator but of coure this doesn't make any difference.

NexusTropers said:
Hi I have a Nexus 7 version (4.1.2 OTA).
I wanted to ask what the deal is or what I'm doing wrong. I purchased the full version of Nexus ToolKit 7. According to the instructions I made the unlocked bootloader and I wanted to root but each attempt failed.
I do not know what I could do wrong when root is fully automated.
PS: I also tried to reflash Stock Rom (4.1.2)
I enclose a picture attachments with an error message
Click to expand...
Click to collapse
You can try flashing CWM recovery and installing Superuser from there.
Download Superuser and copy it to your /sdcard
Flash CWM recovery
Install Superuser from CWM
????
Profit.

try:
http://forum.xda-developers.com/showthread.php?t=1796109

comminus said:
You can try flashing CWM recovery and installing Superuser from there.
Download Superuser and copy it to your /sdcard
Flash CWM recovery
Install Superuser from CWM
????
Profit.
Click to expand...
Click to collapse
Thanks comminus - but I think that if we could do this then we wouldn't be using the tool kit.

bazabaza said:
Thanks comminus - but I think that if we could do this then we wouldn't be using the tool kit.
Click to expand...
Click to collapse
Why not try before you give up? Nothing I suggested is even remotely challenging.
With your tablet booted normally plug it in to your computer and copy the superuser zip in my previous post to the Download directory on your Nexus 7 from Windows.
Judging by the first provided screenshot I can see that option 6 in that toolkit is for flashing recovery. Why not try that?
As far as how to install the zip from ClockworkMod (CWM), there are literally hundreds of threads and YouTube videos that will show you what to do. The better option is to spend a few minutes (literately. It only takes a few minutes.) to learn some basic fastboot commands. If you're willing to learn there are many people who will help.

comminus said:
Why not try before you give up? Nothing I suggested is even remotely challenging.
With your tablet booted normally plug it in to your computer and copy the superuser zip in my previous post to the Download directory on your Nexus 7 from Windows.
Judging by the first provided screenshot I can see that option 6 in that toolkit is for flashing recovery. Why not try that?
As far as how to install the zip from ClockworkMod (CWM), there are literally hundreds of threads and YouTube videos that will show you what to do. The better option is to spend a few minutes (literately. It only takes a few minutes.) to learn some basic fastboot commands. If you're willing to learn there are many people who will help.
Click to expand...
Click to collapse
Thx you for your post
But in the Nexus7 ToolKit can be done but is ClockworkMod must first rename (recovery restore files) but with da only when I have ROOT.
And why unnecessary to install CWM and resolve other problems I'll eat a connection. If "simply" can I ROOT who create me rich enough.

NexusTropers said:
Thx you for your post
But in the Nexus7 ToolKit can be done but is ClockworkMod must first rename (recovery restore files) but with da only when I have ROOT.
Click to expand...
Click to collapse
Choose #1 in your first screenshot.
After you install CWM make sure you boot recovery before a standard boot. On rebooting from CWM it will say something like "ROM may flash stock recovery on boot." and prompt with yes or no. Choose yes - this renames /system/recovery-from-boot.p and prevents the ROM from restoring stock recovery.
NexusTropers said:
And why unnecessary to install CWM and resolve other problems I'll eat a connection. If "simply" can I ROOT who create me rich enough.
Click to expand...
Click to collapse
I'm not really sure what you're trying to say...

I tried quite a few times to root my Nexus 7 with the Nexus 7 toolkit, it hung every time when it was supposed to be installing SuperSU and BusyBox. Every time the last message I saw was "adbd already running as root", and it would just hang there. Everything else appeared to work properly. The only tool I was able to successfully use (more than once) was the Nexus Root Toolkit from Wugfresh http://forum.xda-developers.com/showthread.php?t=1766475. You may want to try that tool.

comminus said:
Choose #1 in your first screenshot.
After you install CWM make sure you boot recovery before a standard boot. On rebooting from CWM it will say something like "ROM may flash stock recovery on boot." and prompt with yes or no. Choose yes - this renames /system/recovery-from-boot.p and prevents the ROM from restoring stock recovery.
I'm not really sure what you're trying to say...
Click to expand...
Click to collapse
1. THX u i try it.
2. AH sorry translator make crazy text.
homerbrew said:
I tried quite a few times to root my Nexus 7 with the Nexus 7 toolkit, it hung every time when it was supposed to be installing SuperSU and BusyBox. Every time the last message I saw was "adbd already running as root", and it would just hang there. Everything else appeared to work properly. The only tool I was able to successfully use (more than once) was the Nexus Root Toolkit from Wugfresh http://forum.xda-developers.com/showthread.php?t=1766475. You may want to try that tool.
Click to expand...
Click to collapse
Oki THX u i try this tool...

I'm also having this same problem but here's my story:
Using the Nexus 1.5.4 Toolkit, I Unrooted + Flashed jzo54k, success. I locked OEM, success. I unlocked again, success. Then I ran the root process again, and it keeps freezing at the android recovery screen. Following the prompt in the toolkit, I walked away for a few hours hoping time would resolve the issue.
If you're wondering why I unlocked + rooted, and decided to unroot, lock, unlock, and root again, its because I'm super-noob to anything android related after version 1.5, I wanted to learn the processes after I found out I was having troubles with certian things after my Nexus 7 updated from 4.1 to 4.1.2

I am having the same issue as you. 4.1.2 is not rooting for me. I can't install CWM or TWRP because it needs to rename recovery files, and to do that you need to be rooted. If I boot in recovery I always get stock

Having the same issue with a stock 4.1.2. I can unlock no problem but I cannot get it rooted. Everything appears to have worked, but it is not rooted. If I revert back to 4.1.1 I can unlock, root, etc. without issue. I was able to root 4.1.1 and use the root keeper app to then update to 4.1.2 and I was rooted still. However, it would not let me install CWM or anything. ROM Manager says it was installed, but booting to recovery always too me to stock.
Any ideas?

Can you point me into the direction to downgrading?
Sent from my Nexus 7 using xda app-developers app

MetalMadness said:
Can you point me into the direction to downgrading?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I used Nexus Root Toolkit v1.5.4 and selected the "Flash Stock + Unroot" option. When prompted I choose the default 4.1.1 option and away it went.

To root my 32Gb on 4.1.2 I had to unlock the boot loader, flash the boot loader back to version 3.34, and then I successfully rooted using the nexus 7 toolkit.

hundred_miles_high said:
To root my 32Gb on 4.1.2 I had to unlock the boot loader, flash the boot loader back to version 3.34, and then I successfully rooted using the nexus 7 toolkit.
Click to expand...
Click to collapse
Winner winner! I was just reading THIS which is exactly what you suggested. I just tried this and can confirm that it did work.
Thanks!

hundred_miles_high said:
To root my 32Gb on 4.1.2 I had to unlock the boot loader, flash the boot loader back to version 3.34, and then I successfully rooted using the nexus 7 toolkit.
Click to expand...
Click to collapse
Indy1204 said:
Winner winner! I was just reading THIS which is exactly what you suggested. I just tried this and can confirm that it did work.
Thanks!
Click to expand...
Click to collapse
Thanks. I did this earlier and it didnt work, but I checked boot instead of flash
FLASH THE OLDER BOOTLOADER DON'T BOOT IT!!!

[Q] Help update to stock 4.2.2 from custom rom 4.2.1

Hi
First of all, this is don't habitual for me since I used to read related post (and more if an update has just arrived) but I just could not find an specific instructions (sorry if I am being too demanding) to go from custom 4.2.1(PA) to stock and finish with rooted 4.2.2, there are a lot of several procedures or recommendations to perform the update :S
well this is what I have planed
- return to stock 4.2.1 (using nexus toolkit)
- download and flash manually the update to 4.2.2 (first try to use the ota update option)
- get root... how??? lol
- restore my apps/data
Since I will return to stock I think I will lose root, that is ok but only if i can root the nexus again, Will I be able to get root on 4.2.2? or I have to root in 4.2.1 and keep it (in some way) at the time I update to 4.2.2
Srryforbad/basicenglish:silly:

Rooting every nexus is the same. Flash/boot a custom recovery and flash supersu.zip. it doesn't matter what OS version its on.
Sent from my Nexus 7 using Tapatalk HD

Pirateghost said:
Rooting every nexus is the same. Flash/boot a custom recovery and flash supersu.zip. it doesn't matter what OS version its on.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
ok, I think I have missing that simple thing...
I don't have to worry about get the bootloader locked again therefore I just have to flash a recovery and SU when I have my N7 on 4.2.2, but...flash from... bootloader I guess, well, I will check that.
Thanks!

Learn the manual way of doing it and don't rely on toolkits. There are many tutorials walking you through the entire process
Sent from my Nexus 7 using Tapatalk HD

SLver said:
ok, I think I have missing that simple thing...
I don't have to worry about get the bootloader locked again therefore I just have to flash a recovery and SU when I have my N7 on 4.2.2, but...flash from... bootloader I guess, well, I will check that.
Thanks!
Click to expand...
Click to collapse
To elaborate on Pirateghost's points...
After flashing the 4.2.2 update... you will lose your recovery (CWM or TWRP)... but getting your recovery back is also part of how you (re)gain root.
As I have posted elsewhere...
Rooting is really simple.
(You will need an unlocked bootloader for this).
Get a custom recovery .img for your device...
Either CWM - http://www.clockworkmod.com/rommanager
...or TWRP - http://www.teamw.in/project/twrp2/103,
...it matters little which...
-----------
fastboot flash it.
-----------
Get Chainfires SU .zip package here http://download.chainfire.eu/310/SuperSU/UPDATE-SuperSU-v1.04.zip
Flash it using the custom recovery you've just fastboot flashed..
Reboot... and you're rooted.
-----------
...and that's it basically... you have root, a custom recovery from which you can flash ROMs, perform nandroid backups, etc.
But fastboot is the key... learn how to use it, and you will never need to be reliant on anybodies toolkit.
Rgrds,
Ged.

[Q] OTA update to 4.2.2 problems

My 7 is unlocked and rooted, using Nexus Root Toolkit. I did an OTA to get to 4.2.1 some time ago and that went well. Root and unlock persisted. I am now getting OTA options for 4.2.2 from the System menu. First time I got and error in Android's belly. I restarted and was still in 4.2.1. System then said that I was up to date. A week or so later System told me again that OTA was available and I got the same result.
Any suggestions as to how I can do the update?

rsipson said:
My 7 is unlocked and rooted, using Nexus Root Toolkit. I did an OTA to get to 4.2.1 some time ago and that went well. Root and unlock persisted. I am now getting OTA options for 4.2.2 from the System menu. First time I got and error in Android's belly. I restarted and was still in 4.2.1. System then said that I was up to date. A week or so later System told me again that OTA was available and I got the same result.
Any suggestions as to how I can do the update?
Click to expand...
Click to collapse
You have two choices
1. Flash the stock 4.2.2 image using fastboot from here https://developers.google.com/android/nexus/images
Or
2. Flash this in CWM recovery (note this link is for the wifi model) http://android.clients.google.com/p....signed-nakasi-JDQ39-from-JOP40D.6ece895e.zip

You have to restore everything except relocking bootloader ... To be able to update ...when u finish ..just re-root
Sent from my Nexus 7 using xda premium

Same thing happened to me, I had to unroot and then root again after update.
Sent from my HTC Desire S using xda app-developers app

heat361 said:
You have two choices
1. Flash the stock 4.2.2 image using fastboot from here https://developers.google.com/android/nexus/images
Or
2. Flash this in CWM recovery (note this link is for the wifi model) http://android.clients.google.com/p....signed-nakasi-JDQ39-from-JOP40D.6ece895e.zip
Click to expand...
Click to collapse
Thanks for your post. I tried this using Clockwork and got a very long error message. I will quote part of it.
assert failed_apply_patch_check("/system/bin/debuggerd", "a2323a0c8 and a lot more
This is followed by error in file
I saw something about busybox changing some system files.
Any ideas??

How do I unroot without whipping all data?
Sent from my Nexus 7 using xda app-developers app

Search this forum for "OTA debugged"
There are only a few threads - read them all before you take any action.
This particular problem appears to be caused by StickMount.
You don't need to delete everything, nor do you need to flash the ENTIRE stock image - only the boot.img and system.img (via fastboot) without doing a factory reset or any other wiping.
This will unroot the ROM, and (of course) prevent StickMount from working. So you should over flash a SuperSU root kit afterwards (via custom recovery).
This very same problem may recur on the next OTA - so for goodness sake's, make a nandroid backup before you re-install StickMount and give it root privileges.

bftb0 said:
Search this forum for "OTA debugged"
There are only a few threads - read them all before you take any action.
This particular problem appears to be caused by StickMount.
You don't need to delete everything, nor do you need to flash the ENTIRE stock image - only the boot.img and system.img (via fastboot) without doing a factory reset or any other wiping.
This will unroot the ROM, and (of course) prevent StickMount from working. So you should over flash a SuperSU root kit afterwards (via custom recovery).
This very same problem may recur on the next OTA - so for goodness sake's, make a nandroid backup before you re-install StickMount and give it root privileges.
Click to expand...
Click to collapse
Sorry for being a numpty... can someone put the above into a mini step by step guide for me.. I'm stuggling with the terminology.
I rooted my Nexus and have since forgotten anything techie regarding it. I have StickMount and cannot update to 4.2.2..
How do i flash boot.img and system.img via fastboot, where do i get these files from, what versions etc do i need? And over flash SuperSU root kit?
What is OTA?
Basically, I think i need a newbie guide. I am techie enough to achieve most things normally.. i just don't know the android system at all, and what i did know to be able to root it i have completely forgotten!
Any guidance would be very much appreciated. Cheers.

[Q] how to root N7 with kitkat

I use cf-auto-root and failed.
it shows that "downloading 'boot.img'...FAILED <data transfer failure <too many open files in system>>"

arsene28 said:
I use cf-auto-root and failed.
it shows that "downloading 'boot.img'...FAILED <data transfer failure <too many open files in system>>"
Click to expand...
Click to collapse
Hmm...First I would try to re-download cf-auto-root just in case something got corrupted. Then be sure to re reboot into bootloader mode before you try again.
If that doesn't work, try WugFresh's toolkit. Unfortunately it is 10x the download size...

I successfully rooted 2012 model with twrp recovery.
Sent from my GT-I9505

Re:Rooting Kit Kat
I have a Nexus 7 (2013) model after reading up on it and playing around with it. I sold my Nexus 2012 and decided to purchase the new model. I installed all of the updates then manually updated to Kit Kat. In regards to rooting I just used Wug's Toolkit and it worked perfectly I was able to re-root my device and install the TWRP Recovery.

I used Nexus Root Toolkit 1.7.6 to root push the official kitkat factory image to my Nexus 7, and right after that, root + flash TWRP. Took no time at all and was painless. Just ensure you allow the toolkit to download the secure boot .img and custom recovery for the device when prompted.
Try it out. http://www.wugfresh.com/nrt/

Just download the flashable superuser ZIP from chainfire. Google for it.
Sent from my Nexus 7 using Tapatalk 4

xDeadaheaDx said:
Just download the flashable superuser ZIP from chainfire. Google for it.
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
This is what I did, sideloaded with TWRP, and it worked like a charm.

I can confirm last 5 replies.

if you are already unlocked, all you have to do to root any nexus device is flash a custom recovery then flash supersu. and if youre not unlocked already. all you have to do is unlock your bootloader, flash a recovery, then flash supersu. thats all, for any nexus. nothing complicated needed, ever. no root toolkits are ever needed unless you want to make sure that you wont learn a thing.

[Q] Rooting

Hi, I just got a new Nexus 7 and I want to root it.
Every guide I look at it seems you have to lose everything on the device, is there a way around this?
Thanks!

zootylicious said:
Hi, I just got a new Nexus 7 and I want to root it.
Every guide I look at it seems you have to lose everything on the device, is there a way around this?
Thanks!
Click to expand...
Click to collapse
Hi, zootylicious...
No, unfortunately not. Rooting requires unlocking the bootloader. For security reasons, unlocking the bootloader will perform a factory reset.... and which will wipe everything on the device.
There are currently no known 'root exploits' for KitKat... such as the old motochopper 'exploit' that worked so well under Jellybean 4.2.2... and rooted the Nexus 7 WITHOUT unlocking the bootloader.
Since Jellybean 4.3 and onward to KitKat 4.4.2, such 'exploits/vulnerabilities' have been 'closed' by Google.... so if you wish to root your Nexus 7, you're going to have to do it the old fashioned way...
----------------------------------------------
** Unlock the bootloader... will wipe the device.
** Fastboot flash a Custom Recovery (CWM or TWRP).
** Download to the Nexus 7, Chainfire's SuperSU root updater .zip
** Boot into the previously fastboot flashed Custom Recovery, and flash the SuperSU .zip.
** Reboot - you're rooted.
----------------------------------------------
Read the 'stickies' and the many excellent guides on this forum for more details.
Hope this helps.
Rgrds,
Ged.

If its new then I presume you have just installed lots of apps that you don't want to reeinstall. Google will "backup"apps and will automatically download and reinstall them when you set up the tablet again after bootloader unlock and root. The Bootloader can usually be relocked for warranty issues. You can use wugfresh nexus toolkit its pretty safe and easy to use.
Sent from one of my 47 iPads running android C3P0

Thanks for the replies.
I thought I'd just post an update on what I was doing.
I managed to root without losing anything by using adb to back up everything before I unlocked.