Restore Stock Nexus 7 Kernal for JRO03D

[bustinstugots24]

Pretty much what the topic says. I can't find info on this.I need stock kernal so I can run the update. 4.1.2
Right now I'm unlocked, rooted with Stock. Is there a zip someone can provide so I may flash it or step by step instructions on how to complete only restoring the kernal? Highly appreciated!!!

 

[Travisdroidx2]

Download the stock files from here
https://developers.google.com/android/nexus/images
You can pull the boot.img from the zip file. Then just
Fastboot flash boot name of image.img

 

[bustinstugots24]

Download the stock files from here
https://developers.google.com/android/nexus/images
You can pull the boot.img from the zip file. Then just
Fastboot flash boot name of image.img

I am very new at this so please understand.
I did what you said and I now have the boot.img file. How do I fast boot flash? I'm really only familiar with flashing zip files using CWM. If you could walk me through it that would be awesome.
Also, after these steps are complete, will this wipe out my nexus back to factory? I didn't want to lose everything I had on it meaning files, games etc.

thanks

 

[bustinstugots24]

Anyone??

 

[comminus]

Pretty much what the topic says. I can't find info on this.I need stock kernal so I can run the update. 4.1.2
Right now I'm unlocked, rooted with Stock. Is there a zip someone can provide so I may flash it or step by step instructions on how to complete only restoring the kernal? Highly appreciated!!!

You say you're "unlocked, rooted with stock". Are you saying that you've unlocked the bootloader, installed custom recovery (cwm) and flashed supersu or similar? If you have not installed a custom ROM or kernel you can manually apply the 4.1.2 update via recovery.

Sent from my Nexus 7 using Tapatalk 2

 

[bustinstugots24]

You say you're "unlocked, rooted with stock". Are you saying that you've unlocked the bootloader, installed custom recovery (cwm) and flashed supersu or similar? If you have not installed a custom ROM or kernel you can manually apply the 4.1.2 update via recovery.

Sent from my Nexus 7 using Tapatalk 2

That is correct. But when I tried to flash the update using CWM it gave me an error. The reason was because I had flashed the trinity Kernal about a week ago. I was able to figure out how to flash the original boot.IMG using adb, put it back to the stock kernel, and was then able to flash the update using CWM. Finally worked after all those steps.

Sent from my HTC Sensation 4G using xda app-developers app

 

[marky9074]

That is correct. But when I tried to flash the update using CWM it gave me an error. The reason was because I had flashed the trinity Kernal about a week ago. I was able to figure out how to flash the original boot.IMG using adb, put it back to the stock kernel, and was then able to flash the update using CWM. Finally worked after all those steps.

Sent from my HTC Sensation 4G using xda app-developers app

Are you getting..

assert failed: apply_patch_check("EMMC:/dev/block/platform/sdhci-tegra.3/by-name/LNX:5007360:456f44ae204097e5159dbd38d97e86aa66e45263

Because so am I, and I'm on Trinity kernel too..

---------- Post added at 04:52 PM ---------- Previous post was at 04:24 PM ----------

OK flash the stock kernel and it works

https://www.dropbox.com/s/e1oshxpyfa7k1xk/stock-jro03d-nexus7-kernel.zip

 

[bustinstugots24]

Are you getting..

assert failed: apply_patch_check("EMMC:/dev/block/platform/sdhci-tegra.3/by-name/LNX:5007360:456f44ae204097e5159dbd38d97e86aa66e45263

Because so am I, and I'm on Trinity kernel too..

---------- Post added at 04:52 PM ---------- Previous post was at 04:24 PM ----------

OK flash the stock kernel and it works

https://www.dropbox.com/s/e1oshxpyfa7k1xk/stock-jro03d-nexus7-kernel.zip

A few days ago I was begging people to send me a zip file of the kernel and they claimed it didn't exist. This would have been real handy. Do u have a zip file for the latest kernel by any chance???

Sent from my HTC Sensation 4G using xda app-developers app

 

[marky9074]

Of the 4.1.2 kernel? No, but maybe I should try and find one prior to the 4.2 update to avoid this happening again!

Sent from my Nexus 7 using Tapatalk 2

 

[StrangerWeather]

Is this the stock kernel? Can I use it like any other kernel with a custom ROM? How do I know if I'm JRO03D or something else?

Sent from my Nexus 7 using xda premium

 

[bustinstugots24]

Of the 4.1.2 kernel? No, but maybe I should try and find one prior to the 4.2 update to avoid this happening again!

Sent from my Nexus 7 using Tapatalk 2

Dude that would be awesome. I can screw around with some custom kernels and alway go back to stock if I need to. If you can do that it's highly appreciated

Is this the stock kernel? Can I use it like any other kernel with a custom ROM? How do I know if I'm JRO03D or something else?
Sent from my Nexus 7 using xda premium

You can tell by looking at the about tablet section in your settings. It's the build number.

Sent from my HTC Sensation 4G using xda app-developers app

 

[comminus]

A few days ago I was begging people to send me a zip file of the kernel and they claimed it didn't exist. This would have been real handy. Do u have a zip file for the latest kernel by any chance???

Sent from my HTC Sensation 4G using xda app-developers app

Here are both stock kernels:
JRO03D cwm flashable - http://dl.dropbox.com/u/12008411/kernel-grouper-jro03d.zip
JZO54K cwm flashable - http://dl.dropbox.com/u/12008411/kernel-grouper-jzo54k.zip

sha1sum
kernel-grouper-jro03d.zip - 2dc7ef5f59f86015e292d8ae7a9ab834c5d852aa
kernel-grouper-jzo54k.zip - 81cd77a31d4fadd82873b1182e377ec51b900cf8

 

[Silverbrain]

The stock kernel zip worked great for me, patching system files as we speak, thank you!

 

[bustinstugots24]

Here are both stock kernels:
JRO03D cwm flashable - http://dl.dropbox.com/u/12008411/kernel-grouper-jro03d.zip
JZO54K cwm flashable - http://dl.dropbox.com/u/12008411/kernel-grouper-jzo54k.zip

Life saver. Thank you so much

Sent from my Nexus 7 using xda app-developers app

 

[Toyeboy]

Can you flash the stock kernel zip in cwm? I've tried twice and it says its doing it then when I go back to my tablet info it says I'm still on Motleys kernel hmm? What am I doing wrong?

Sent from my Nexus 7 using Tapatalk 2

 

[comminus]

Can you flash the stock kernel zip in cwm? I've tried twice and it says its doing it then when I go back to my tablet info it says I'm still on Motleys kernel hmm? What am I doing wrong?

Sent from my Nexus 7 using Tapatalk 2

I have fixed the updater and re-posted the files. The sha1 sums have been added to the post as well. Sorry for the trouble

 

[Pr3tec]

Hi,

I have build number JRO03S on my Nexus 7, could I flash JRO03D kernel? or would it mess everything up?

 

[comminus]

Hi,

I have build number JRO03S on my Nexus 7, could I flash JRO03D kernel? or would it mess everything up?

I most likely wont mess everything up. Unless there is a compelling reason to do so, just update your N7 to 4.1.2 / JZ054K.

 

[jm1981]

Hi,
I got the "assert failed: apply_patch_check("EMMC:/dev/block/platform/sdhci-tegra.3..." error.
I have installed a custom kernel and it seems that i need the stock kernel to complete the update to 4.1.2, but i have not found the stock kernel of the JRO03S.

Have you any idea where i could find it ?

 

[jm1981]

I found the .img kernel in this thread : http://forum.xda-developers.com/showthread.php?t=1890415
Then i was able to update to 4.1.2 successfully