Database Users

Lots root after 4.1.2, please help

I lost root after manually updating to 4.1.2 by flashing the zip.
I tried re-rooting but nothing happened and it would just boot back to system.
It is still unlocked though.
Please advise.

fastboot oem unlock, fastboot flash a custom recovery, flash the su binaries,and reboot.

simms22 said:
fastboot oem unlock, fastboot flash a custom recovery, flash the su binaries,and reboot.
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Click to collapse
Thanks but how do I do that?

woshiweili said:
Thanks but how do I do that?
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Click to collapse
You can use WUGs tool kit to root after 4.1.2 update.
For version, just pick custom ROM (JB).
Search for that thread and follow his second....super easy.
Sent from my Nexus 7 using xda app-developers app

tbonezx11 said:
You can use WUGs tool kit to root after 4.1.2 update.
For version, just pick custom ROM (JB).
Search for that thread and follow his second....super easy.
Click to expand...
Click to collapse
Thanks. Yes Wug's toolkit is easy to use. Unfortunately that's one of the first things I tried and didn't work for me.
What ended up working was using Wug's to UNROOT, then unlock and re-root. For some reason that worked. Also fortunately I had a feeling I needed to backup my TWRP backups onto my computer as the Nexus 7 was COMPLETELY wiped after re-unlocking. After this was all done, I moved my backups back to my N7 and restored. Back to 4.1.1 for now. Whew!

didn't work for me either, I could not get ANY custom recovery images to successfully boot on the new bootloader and 4.1.2. Going back to 4.1.1 allowed root again.
Big waste of time going back to stock, locking, unlocking, sideloading 4.1.2 then trying to root.
Had to wipe once more, go back to stock, unlock/lock, root and leave it on 4.1.1
No idea how people are getting custom recoveries to boot on 4.1.2, mine will just restart itself within about 10 seconds of trying to boot an image.

Wug's toolkit makes a folder called ! Ready to flash ...
You will find support su and busy box there....boot to recovery flat the two zips and it roots...
If you did a full wipe they may not be there anymore...
Run the Wug script, when it boots to recovery, install the two zips manually.
Sent from a Buttery-smooth Amaze with xda-developers app

simms22 said:
fastboot oem unlock, fastboot flash a custom recovery, flash the su binaries,and reboot.
Click to expand...
Click to collapse
It was a valiant effort. Can't say you didn't try.

I myself lost root after upgrading to 4.1.2.i just used wugs toolkit and just picked any version for nexus 7 and clicked root.of course better check full driver test first before proceesing.now i am on 4.1.2 and got back with root.
Sent from my Nexus 7 using xda app-developers app

[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?
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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.
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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.
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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] Stuck into boot screen

Got problem with my device. I installed a custom kernel now my device just stuck into boot screen. I have no backup so I tried to push a custom rom to my nexus 7 from my computer using cwm but it didnt mount to m computer. I also tried to use Nexus Root Toolkit to push the custom rom to the device but it also didnt work. How can I fix this??

Please Help.. My Nexus 7 is still stuck on bootloop..I used wug's Nexus Root Toolkit and flashed the factory image but still it didnt work..

mikenirochiell said:
Please Help.. My Nexus 7 is still stuck on bootloop..I used wug's Nexus Root Toolkit and flashed the factory image but still it didnt work..
Click to expand...
Click to collapse
try to flash other kernel...... franco kernel works very well.....
wugs toolkit should work for you....
can you put your nexus in bootloader mode? if you can don't worry your tablet is not totally bricked.....
boot your tablet en bootloader..... open wugs toolkit an select back to stock and unroot(select that the device is semibricked and tell us what happen)

Help I bricked my nexus

I was using the tool kit here: [NEXUS 4 TOOLKIT V2.0.0]
I got the drivers to work and i unlocked my device then when the root procedure came around my device failed to flash the unsecure boot img.
so i went to download N-Cry's toolkit to root from their. This also refused to work now my phone will not boot. I can get to the google screen with the unlock logo and fastboot.

UnderZone7 said:
I was using the tool kit here: [NEXUS 4 TOOLKIT V2.0.0]
I got the drivers to work and i unlocked my device then when the root procedure came around my device failed to flash the unsecure boot img.
so i went to download N-Cry's toolkit to root from their. This also refused to work now my phone will not boot. I can get to the google screen with the unlock logo and fastboot.
Click to expand...
Click to collapse
try wiping data/factory reset then try to boot.

simms22 said:
try wiping data/factory reset then try to boot.
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Click to collapse
How do i do that?

UnderZone7 said:
How do i do that?
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Click to collapse
do you have a custom recovery installed? you would do it in the custom recovery. if you dont, you might have to flash the factory image via fastboot http://forum.xda-developers.com/showthread.php?t=2010312
doing everything the right way instead of a root toolkit is easier and faster, you just need to do a little reading first.

simms22 said:
do you have a custom recovery installed? you would do it in the custom recovery. if you dont, you might have to flash the factory image via fastboot http://forum.xda-developers.com/showthread.php?t=2010312
doing everything the right way instead of a root toolkit is easier and faster, you just need to do a little reading first.
Click to expand...
Click to collapse
The root part wasn't working so I never go to the flashing recovery

UnderZone7 said:
The root part wasn't working so I never go to the flashing recovery
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Click to collapse
So flash one

UnderZone7 said:
The root part wasn't working so I never go to the flashing recovery
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Click to collapse
as said above, flash one now via fastboot.
the right way to root a nexus in general terms.. fastboot oem unlock via fastboot, flash a custom recovery via fastboot, flash either the su binaries or a custom rom via your new custom recovery, reboot and profit. thats all that needs to be done when using any nexus, thats one reason we buy nexus devices

I don't think people understand what "brick" really means.
Sent from my iPad 4

Know why I love the XDA community so much?
Because after the 1 millionth "I bricked my Nexus, what do I do??" thread with someone who might not have done all the research they should have before flashing their device, XDA will still post helpful advice and generally help out, instead of posting comments like "omg read before you flash!!!".
And as stated above OP, try to stay clear of toolkits and stuff, at least starting out. That way, you learn a lot about what's going on in the background, and learn how you can prevent things from going wrong, and what to do when they do go wrong. I highly recommend reading at least the first 4 posts in this thread. It is extremely helpful.

simms22 said:
as said above, flash one now via fastboot.
the right way to root a nexus in general terms.. fastboot oem unlock via fastboot, flash a custom recovery via fastboot, flash either the su binaries or a custom rom via your new custom recovery, reboot and profit. thats all that needs to be done when using any nexus, thats one reason we buy nexus devices
Click to expand...
Click to collapse
Thank you so much for all your help. I used the guide got fastboot and the drivers working and I was able to flash a rom.

[Q] Flashing any custom ROM soft bricks my N4.

I'm experiencing a very odd problem where every time I try to flash a custom ROM, it soft bricks and gets stuck at boot. But, using the Nexus Root Toolkit v1.7.2, I can flash back to stock and everything works fine. Any ideas? I'm trying to flash SlimROM.

NomNuggetNom said:
I'm experiencing a very odd problem where every time I try to flash a custom ROM, it soft bricks and gets stuck at boot. But, using the Nexus Root Toolkit v1.7.2, I can flash back to stock and everything works fine. Any ideas? I'm trying to flash SlimROM.
Click to expand...
Click to collapse
Make sure you have the latest twrp recovery and that you do a full wipe prior to flashing the rom. Also check the md5 of the downloads (rom & gapps).
Let us know how it goes.

Yeah I never use tool kits. They're always tricky. I followed that ultimate root guide.
Sent from my Nexus 4 using Tapatalk 4

If you use rootkits you don't see what is going on behind it. I'm new to nexus 4 and i followed this useful guide, unlock, root flash another roms without a hiccup. Best lucks.
http://forum.xda-developers.com/showthread.php?t=2266654

Vangelis13 said:
Make sure you have the latest twrp recovery and that you do a full wipe prior to flashing the rom. Also check the md5 of the downloads (rom & gapps).
Let us know how it goes.
Click to expand...
Click to collapse
Alright I'm trying that, not using a toolkit. While installing the ROM it says:
Code:
Skipping MD5 check: no MD5 file found.
Could this be a problem?
EDIT: Ah, finally, it's working! Thanks guys.