I just received an RMA from Google and without thinking updated it to 4.2.2. How would I go about unlocking it and rooting this?
Thanks in advance!
Yes. both Toolkit from wugfresh or mskip can easily do that.
'fastboot oem unlock'
Grab a supersu update.zip from here http://forum.xda-developers.com/showthread.php?t=1538053, push it to your /sdcard/;
'fastboot boot twrp_or_cwm.img';
Flash the zip.
Profit.
Sent from my Nexus
Related
When i had my nexus 7 i updated to 4.2.1 and then did a factory reset. Upon booting my nexus was back on android 4.1.2(i thought this shouldnt have happened?)
Now the OTA update wont install - i get the dead android with an exclamation mark.
I have downloaded the nexus 7 toolkit to try and unlock the bootloader and flash stock 4.2.1 but i get an error when trying to unlock - FAILED (command write failled (unknown error))
anyone able offer some help please?
ive tried fastboot oem unlock using nexus toolkit and direct through the command line with same results
is this guide any good?
http://forums.androidcentral.com/ne...1477-guide-nexus-7-factory-image-restore.html
Otherwise you have this GUIDE
Phone:I9100P
Kernel:Dorimanx
ROM:4.2.1 Vanilla RootBox
Tablet:Nexus 7
Kernel:M-Kernel
ROM:4.2.1 AOKP PUB
MOD:JusTunBean
welly_59 said:
When i had my nexus 7 i updated to 4.2.1 and then did a factory reset. Upon booting my nexus was back on android 4.1.2(i thought this shouldnt have happened?)
Now the OTA update wont install - i get the dead android with an exclamation mark.
I have downloaded the nexus 7 toolkit to try and unlock the bootloader and flash stock 4.2.1 but i get an error when trying to unlock - FAILED (command write failled (unknown error))
anyone able offer some help please?
Click to expand...
Click to collapse
It is possible (albeit very slightly) that the file didn't flash correctly, but did corrupt the bootloader just enough to stop it being unlocked/booting into recovery.
If you can't issue the 'fastboot oem unlock' command then it could be for 2 reasons:
1. It is already unlocked (try typing 'fastboot oem lock' and see if it re-locks')
2. The bootloader is slightly corrupt.
Hopefully it is the first one
liamwli said:
It is possible (albeit very slightly) that the file didn't flash correctly, but did corrupt the bootloader just enough to stop it being unlocked/booting into recovery.
If you can't issue the 'fastboot oem unlock' command then it could be for 2 reasons:
1. It is already unlocked (try typing 'fastboot oem lock' and see if it re-locks')
2. The bootloader is slightly corrupt.
Hopefully it is the first one
Click to expand...
Click to collapse
i managed to get it working after erasing everything as in the guide above. I had to keep unplugging the device and trying again though and after a few attempts it worked
when encountering this error i simply cycled through the options (using volume) and said boot into bootloader, familiar windows device dis/connect and then tried the fastboot flash boot boot.img cmd again, worked a treat, currently flashing the system part.
hope this helps!
helo friends i need help.i just wanna know how can i unroot and relock the boot loader of my nexus 4 if i want to send to for replacement.i used the Mskips toollkit to root and unlock the boot loader and i know that there is a option to relock and unroot but can someone plz explain me the full procedure properly.
Flash the stock image following this guide: http://forum.xda-developers.com/showthread.php?t=2010312
Then to lock use the command: fastboot oem lock
Sent from my Nexus 4 using xda premium
Hi i had some problem too had just solve it.
I pushed Stock Rom then i had tried re lock. But toolkit couldnt do it.
Then i pushed stock recovery too then toolkit locked my phone...
I would like to receive OTA updates in the future so I left the recovery untouched on my Nexus 4. In the past I used "fastboot boot recovery.img" to boot into CWM recovery and flash an "update.zip" of SuperSU. So I get a rooted Nexus 4 without flashing custom recovery.
However, things changed after I flashed my Nexus 4 with Android 4.3 factory image listed on Google Developers' page.
In fastboot mode, I tried to use my old routine of "fastboot boot recovery.img", the command line shows:
Code:
$ sudo fastboot boot recovery-clockwork-6.0.3.4-mako.img
downloading 'boot.img'...
OKAY [ 0.398s]
booting...
OKAY [ 0.002s]
finished. total time: 0.400s
Screen goes off, Google logo appears, screen dimmed, a few minutes passed, nothing happened.
My phone has already "fastboot oem unlock", of course. I tried it again and again. With different CWM recoverys and TWRP, the results are same.
I tried "fastboot flash recovery recovery.img", it works, and I can boot into recovery. But I want to preseve stock recovery so I flashed it back.
I just don't know why "fastboot boot" does not work in Android 4.3 any more while "fastboot flash recovery" still works?
To test it out, I tried these on the Nexus 4 of a friend of mine:
1. Her Nexus 4 was 4.2.2.
2. "fastboot boot recovery.img" works.
3. Flash factory image of Android 4.3, everything's fine.
4. "fastboot boot recovery.img" does not work any more! (neither CWM nor TWRP)
5. "fastboot flash recovery recovery.img" works.
So, the results are exactly same on my Nexus 4 and my friend's. There must be something wrong with Android 4.3, e.g. new security enforcements. Do anyone know something about this? Google did not return any valuable results.
EDIT: Problem solved. As 3rdstring explains: http://forum.xda-developers.com/showpost.php?p=44004032&postcount=6 , the new version of bootloader shipped with Android 4.3 factory image changed some of the "fastboot boot" command so you need to specify a kernel commandline to use "fastboot boot" command. For Nexus 4, the command is:
Code:
fastboot -c "lge.kcal=0|0|0|x" boot customrecovery.img
Yea Google took out fastboot boot for some reason.... Fastboot flash works fine though
Sent from my Nexus 4 using Tapatalk 4 Beta
italia0101 said:
Yea Google took out fastboot boot for some reason.... Fastboot flash works fine though
Sent from my Nexus 4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Well... I did not see any documentation announacing that... So we cannot use "fastboot boot" in Android 4.3 and future releases?
wzyboy said:
Well... I did not see any documentation announacing that... So we cannot use "fastboot boot" in Android 4.3 and future releases?
Click to expand...
Click to collapse
So far no, looks like it was taken out of the updated bootloader.... Maybe security? Maybe they want people who have root to have an unlocked bootloader etc
Sent from my Nexus 4 using Tapatalk 4 Beta
italia0101 said:
So far no, looks like it was taken out of the updated bootloader.... Maybe security? Maybe they want people who have root to have an unlocked bootloader etc
Sent from my Nexus 4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
You usually have to unlock you're bootloader to be able to use fastboot boot anyway
Sent from my Nexus 4 using xda app-developers app
Google changed something but it's still possible according to this thread.
Code:
fastboot -c "lge.kcal=0|0|0|x" boot customrecovery.img
For what it's worth fastboot boot fails on the new Nexus 7 as well, but flash works fine.
Sent from my Nexus 4 using Tapatalk 2
joshnichols189 said:
For what it's worth fastboot boot fails on the new Nexus 7 as well, but flash works fine.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
So I have read through here quite a bit and I see the new commands for fastboot boot. My problem is I can't even connect with fastboot. Adb works but fastboot just days waiting for device. I deleted my existing SDK and downloaded the newest version (7/29/13). Still no luck. Windows 8 64 bit. Any suggestions?
Interesting
Works Again?
For the record: "fastboot boot recovery.img" just worked fine for me on a Nexus 5 with 4.4.4
even after flashing recovery, device shows stock recovery. I advise folks to visit MiUi forum for the twrp, that way it was quick and easy
3rdstring said:
Google changed something but it's still possible according to this thread.
Code:
fastboot -c "lge.kcal=0|0|0|x" boot customrecovery.img
Click to expand...
Click to collapse
what is lge.kcal=0|0|0|x
I dont always boot into recovery from fastboot but when i do, i use
fastboot reboot-recovery
Keep flashing, my friends!
Hey, I want to upgrade my N7 bootloader from 3.41.3 to a newer vesion because I want to install M kernel.
How do you upgrade it?
Daniel120201 said:
Hey, I want to upgrade my N7 bootloader from 3.41.3 to a newer vesion because I want to install M kernel.
How do you upgrade it?
Click to expand...
Click to collapse
With very considerable care!
Hi, Daniel120201...
The method I use is via fastboot... I don't know if the various toolkits that are available can flash a bootloader, as I've never used them.
So, using fastboot, the command line syntax is...
Code:
fastboot flash bootloader bootloader-grouper-4.23.img
...for flashing bootloader-grouper-4.23.img on a WiFi only 'grouper' Nexus 7.
The bootloader for the WiFi+3G Nexus 7 ('tilapia') will have a different bootloader name.
** (Edit & addendum: just checked, and as expected, it's called bootloader-tilapia-4.23.img) **
So for a WiFi & 3G Nexus 7, the bootloader flash command would be...
Code:
fastboot flash bootloader bootloader-tilapia-4.23.img
-----------------------------------------
IT'S VITALLY IMPORTANT YOU FLASH THE CORRECT BOOTLOADER FOR YOUR SPECIFIC NEXUS 7. Fastboot flashing an incorrect bootloader to the bootloader partition WILL HARDBRICK the device.
And on that note... and before you do anything... it's important you read the following first...
[WARNING][URGENT] N7 grouper (2012 WiFi) bootloader .img files from Google.
Hope this helps... and good luck.
Rgrds,
Ged.
Ty but I upgraded it before seeing this
You still deserve a thanks
GedBlake said:
With very considerable care!
Hi, Daniel120201...
The method I use is via fastboot... I don't know if the various toolkits that are available can flash a bootloader, as I've never used them.
So, using fastboot, the command line syntax is...
Code:
fastboot flash bootloader bootloader-grouper-4.23.img
...for flashing bootloader-grouper-4.23.img on a WiFi only 'grouper' Nexus 7.
The bootloader for the WiFi+3G Nexus 7 ('tilapia') will have a different bootloader name.
** (Edit & addendum: just checked, and as expected, it's called bootloader-tilapia-4.23.img) **
So for a WiFi & 3G Nexus 7, the bootloader flash command would be...
Code:
fastboot flash bootloader bootloader-tilapia-4.23.img
-----------------------------------------
IT'S VITALLY IMPORTANT YOU FLASH THE CORRECT BOOTLOADER FOR YOUR SPECIFIC NEXUS 7. Fastboot flashing an incorrect bootloader to the bootloader partition WILL HARDBRICK the device.
And on that note... and before you do anything... it's important you read the following first...
[WARNING][URGENT] N7 grouper (2012 WiFi) bootloader .img files from Google.
Hope this helps... and good luck.
Rgrds,
Ged.
Click to expand...
Click to collapse
Hi mate ,
really good information , i been looking for something like that for a while...
Where do i get the bootloader from? factory images? if so i have to unlock them and root them again.....
And besides fastboot can i use tools like NRT to flash them?
So many questions...
MAX 404 said:
Hi mate ,
really good information , i been looking for something like that for a while...
Where do i get the bootloader from? factory images? if so i have to unlock them and root them again.....
And besides fastboot can i use tools like NRT to flash them?
So many questions...
Click to expand...
Click to collapse
You download the factory image, extract it and it should be one of the files. The just fastboot flash bootloader bootloadername.img
kilometers4 said:
You download the factory image, extract it and it should be one of the files. The just fastboot flash bootloader bootloadername.img
Click to expand...
Click to collapse
Thanks.
then i should unlock it and root again? also newer is better i am on 4.21 now
MAX 404 said:
Thanks.
then i should unlock it and root again? also newer is better i am on 4.21 now
Click to expand...
Click to collapse
Is it already unlocked? If it is I'm pretty sure it will stay unlocked. But if it isn't, yes you can unlock and root it. Just keep in mind that unlocking the bootloader will wipe your data
kilometers4 said:
Is it already unlocked? If it is I'm pretty sure it will stay unlocked. But if it isn't, yes you can unlock and root it. Just keep in mind that unlocking the bootloader will wipe your data
Click to expand...
Click to collapse
It is already unlocked , thanks for the support , you are number 1.
Topic says it. Is there a way to unlock the bootloader and root the original 4.4.2?
I just need the commands from the fastboot panel. This roottoolkit in the development section want to download a whole new nakasi image and I think that this cannot be exept it wants to install crapware on it.
To unlock: fastboot oem unlock
To root: http://forum.xda-developers.com/showthread.php?t=2025272
Erovia said:
To unlock: fastboot oem unlock
To root: http://forum.xda-developers.com/showthread.php?t=2025272
Click to expand...
Click to collapse
Thank you very much. Will try this out.