Database Users

Restore Stock Nexus 7 Kernal for JRO03D

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!!!

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

Travisdroidx2 said:
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
Click to expand...
Click to collapse
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

Anyone??

bustinstugots24 said:
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!!!
Click to expand...
Click to collapse
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

comminus said:
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
Click to expand...
Click to collapse
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

bustinstugots24 said:
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
Click to expand...
Click to collapse
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

marky9074 said:
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
Click to expand...
Click to collapse
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

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

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

marky9074 said:
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
Click to expand...
Click to collapse
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
StrangerWeather said:
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
Click to expand...
Click to collapse
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

bustinstugots24 said:
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
Click to expand...
Click to collapse
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

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

comminus said:
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
Click to expand...
Click to collapse
Life saver. Thank you so much
Sent from my Nexus 7 using xda app-developers app

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

Toyeboy said:
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
Click to expand...
Click to collapse
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

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

Pr3tec said:
Hi,
I have build number JRO03S on my Nexus 7, could I flash JRO03D kernel? or would it mess everything up?
Click to expand...
Click to collapse
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.

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 ?

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

Ota update keeps failing

Can't install 4.2.2 ota and from what I have read its because I have custom recovery? How do I go back to stock recovery or is there a flashable stock 4.2.2 update I can use ?
Sent from my Nexus 4 using xda premium

Use the search option next time please.
[HOW-TO] How to flash a factory image / return to stock / unlock / root #

http://forum.xda-developers.com/showthread.php?t=2010312
Use fastboot and the recovery image available through a link in that thread to go back to the stock recovery.

Or you could simply flash 4.2.2 through your recovery;
http://forum.xda-developers.com/showthread.php?t=2147281
Sent from my CM 10.1 Nexus 4 using xda premium

caliga4221 said:
Can't install 4.2.2 ota and from what I have read its because I have custom recovery?
Click to expand...
Click to collapse
Yes, the custom recovery is what's causing the OTA self installation to fail. You must download the update to your phone, boot into twrp or cwm, and install the update zip.

Visa Declined said:
Yes, the custom recovery is what's causing the OTA self installation to fail. You must download the update to your phone, boot into twrp or cwm, and install the update zip.
Click to expand...
Click to collapse
Isnt the eazyest and simplest way to go back to stock via Nexus Root Toolkit???

Karlo666 said:
Isnt the eazyest and simplest way to go back to stock via Nexus Root Toolkit???
Click to expand...
Click to collapse
No toolkits! Get out.

caliga4221 said:
Can't install 4.2.2 ota and from what I have read its because I have custom recovery? How do I go back to stock recovery or is there a flashable stock 4.2.2 update I can use ?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I put together a guide about OTAs. Its a sticky in general.
http://forum.xda-developers.com/showthread.php?t=2145848
Karlo666 said:
Isnt the eazyest and simplest way to go back to stock via Nexus Root Toolkit???
Click to expand...
Click to collapse
Using a toolkit is most likely the reason why the OP doesn't know how to flash recovery. Using a toolkit again would continue the cycle...
Sent from my Nexus 7 using xda premium

[HELP] Nexus 4 stuck on boot screen

Hi.
Guys. I need help. I tried changing font on my rooted Nexus. I used font installer from Play Store. After installation the app asked me to reboot the device. Now the phone is stuck on boot screen. I tried going in to recovery and wiping all the data. It did not help.
Can anyone in this community help me?
Sent from my LG-P970 using xda app-developers app

indian84 said:
Hi.
Guys. I need help. I tried changing font on my rooted Nexus. I used font installer from Play Store. After installation the app asked me to reboot the device. Now the phone is stuck on boot screen. I tried going in to recovery and wiping all the data. It did not help.
Can anyone in this community help me?
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
reflash your rom

simms22 said:
reflash your rom
Click to expand...
Click to collapse
Hi. Can you please suggest the post where I can get the procedure...
Sent from my LG-P970 using xda app-developers app

indian84 said:
Hi. Can you please suggest the post where I can get the procedure...
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
are you running a custom rom?

simms22 said:
are you running a custom rom?
Click to expand...
Click to collapse
No. I was on Stock. Rooted. No recovery installed..
Sent from my LG-P970 using xda app-developers app

indian84 said:
No. I was on Stock. Rooted. No recovery installed..
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
fastboot flash a recovery, and you could load a custom rom. twrp recovery has an option to push files to your phone with adb. you can push a rom to your phone then flash it in your recovery. or you can flash the stock image via fastboot http://forum.xda-developers.com/showthread.php?t=2183555

simms22 said:
fastboot flash a recovery, and you could load a custom rom. twrp recovery has an option to push files to your phone with adb. you can push a rom to your phone then flash it in your recovery. or you can flash the stock image via fastboot http://forum.xda-developers.com/showthread.php?t=2183555
Click to expand...
Click to collapse
Thanx Bro. My nexus is up and running now..
Sent from my Nexus 4 using xda premium

Today I tried fastboot and flash 4.3 stock rom on my nexus 4, root and stock rom.
For some reason the zip on "sdcard" is failing (error 7 code strange as it was full stock) letting me a stuck google boot.
I tried to wipe cache without success.
I am sure the solution is somewhere here as already said in that topic: http://forum.xda-developers.com/showthread.php?t=2183555
But what line should I follow first? Ideally I would like to flash 4.3 or 4.2.2 without factory reset.
Any advice?

Is your boot loader unlocked?? If yes you won't loose any data if you follow the above procedure.. But if not, I think the chances of saving data are low. You can install 4.3 directly if you have the files. I updated mine yesterday using the same method.. I was on slimbeam..
Sent from my Nexus 4 using xda premium

indian84 said:
Is your boot loader unlocked?? If yes you won't loose any data if you follow the above procedure.. But if not, I think the chances of saving data are low. You can install 4.3 directly if you have the files. I updated mine yesterday using the same method.. I was on slimbeam..
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Yes I am unlocked/rooted. The thing is 4.3 install fails either from sdcard or doing a sideload. I will try 4.2.2 but I am starting to worry a bit...

looppingz said:
Yes I am unlocked/rooted. The thing is 4.3 install fails either from sdcard or doing a sideload. I will try 4.2.2 but I am starting to worry a bit...
Click to expand...
Click to collapse
If you are unlocked, try this. http://forum.xda-developers.com/showthread.php?t=2010312
Download 4.3 factory image from here https://dl.google.com/dl/android/aosp/takju-jwr66v-factory-c2ef855e.tgz.
Hopefully this should help.

indian84 said:
If you are unlocked, try this. http://forum.xda-developers.com/showthread.php?t=2010312
Download 4.3 factory image from here https://dl.google.com/dl/android/aosp/takju-jwr66v-factory-c2ef855e.tgz.
Hopefully this should help.
Click to expand...
Click to collapse
Thanks this is what I am currently following but I trying to do some good backup before doing step d10 over there.
I just manage to adb pull the sdcard content. Anyuthing else I should and can recover with adb pull?

looppingz said:
Thanks this is what I am currently following but I trying to do some good backup before doing step d10 over there.
I just manage to adb pull the sdcard content. Anyuthing else I should and can recover with adb pull?
Click to expand...
Click to collapse
Not sure mate.. Search the forum.. Should help...

indian84 said:
Not sure mate.. Search the forum.. Should help...
Click to expand...
Click to collapse
I have been reading and applying more carrefully http://forum.xda-developers.com/showthread.php?t=2010312 without D10. It is well writen and it is looking to be a safe and efficient to me. I even started by installing 4.2.2 again, then backup then 4.3 with the same method.
4.3 up running and rooted!
No data loss, some stuff learnt and a new backup!
If a new OTA is popping up I will look for the same method.

looppingz said:
I have been reading and applying more carrefully http://forum.xda-developers.com/showthread.php?t=2010312 without D10. It is well writen and it is looking to be a safe and efficient to me. I even started by installing 4.2.2 again, then backup then 4.3 with the same method.
4.3 up running and rooted!
No data loss, some stuff learnt and a new backup!
If a new OTA is popping up I will look for the same method.
Click to expand...
Click to collapse
That's what XDA is for.. Enjoy flashing..
Good Luck..:good:

Flash stock recovery?

Hello! I have TWRP installed on my device without root or custom rom/kernel. Is there a way I can just flash the stock recovery to get future OTA updates? I prefer using a method that doesnt require admin rights on my pc, because I am not using my own pc for the moment.

You can get the factory image, extract ALL the zips and when you find the recovery image do "fastboot flash recovery recovery.img".
Sent from my Nexus 4 using Tapatalk 4

andyabc said:
You can get the factory image, extract ALL the zips and when you find the recovery image do "fastboot flash recovery recovery.img"
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
That's the problem. Efrant says you have to use 7zip and not any other thing to extract the image, but I cant install it because I dont have admin rights on this pc.

You can use Flashify from Play Store to flash recovery images without PC.
Sent from my Nexus⁴ using Tapatalk 4 Beta

Thibaultvw said:
That's the problem. Efrant says you have to use 7zip and not any other thing to extract the image, but I cant install it because I dont have admin rights on this pc.
Click to expand...
Click to collapse
So can't you right click and try to extract it?
Sent from my Nexus 4 using Tapatalk 4

andyabc said:
So can't you right click and try to extract it?
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
I can do that but you need 7zip efrant said.

Thibaultvw said:
I can do that but you need 7zip efrant said.
Click to expand...
Click to collapse
I know you need to use 7Zip I use it myself but it is worth a try, at the moment I am going to pull out the recovery for you.
Sent from my Nexus 4 using Tapatalk 4

TToivanen said:
You can use Flashify from Play Store to flash recovery images without PC.
Sent from my Nexus⁴ using Tapatalk 4 Beta
Click to expand...
Click to collapse
Did you use that before?

Hang on, just going to get lunch and then give you the image.
Sent from my Nexus 4 using Tapatalk 4

andyabc said:
Hang on, just going to get lunch and then give you the image.
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
I downloaded the factory image myself, but you can give it to me as well so I know I did it correctly. Why actually do you have to use 7zip?
Edit: nope I cant extract it myself

Thibaultvw said:
Did you use that before?
Click to expand...
Click to collapse
No but I'm about to try it in a moment. Downloading factory image as we speak...
Sent from my Nexus⁴ using Tapatalk 4 Beta
---------- Post added at 03:42 PM ---------- Previous post was at 03:21 PM ----------
TToivanen said:
No but I'm about to try it in a moment. Downloading factory image as we speak...
Sent from my Nexus⁴ using Tapatalk 4 Beta
Click to expand...
Click to collapse
Yeah, it totally worked. Also locked bootloader using BootUnlocker app.
Got some piece of mind and I also hope this will ease up my ORD a bit
I may easily restore my backed up custom recovery using flashify if I ever need to update ROM or whatever...
Sent from my Nexus⁴ using Tapatalk 4 Beta

Thibaultvw said:
I downloaded the factory image myself, but you can give it to me as well so I know I did it correctly. Why actually do you have to use 7zip?
Edit: nope I cant extract it myself
Click to expand...
Click to collapse
Here you are, just flash it using fastboot using this command:
fastboot flash recovery recovery.img

andyabc said:
Here you are, just flash it using fastboot using this command:
fastboot flash recovery recovery.img
Click to expand...
Click to collapse
Thanks! It's the one for 4.3 right?
And if I want to install a custom rom, and make a twrp backup. Can I then go back to restore the backup and then just flash this recovery in fastboot to get the OTA?

Thibaultvw said:
Thanks! It's the one for 4.3 right?
And if I want to install a custom rom, and make a twrp backup. Can I then go back to restore the backup and then just flash this recovery in fastboot to get the OTA?
Click to expand...
Click to collapse
Yes, yes and yes.
You can use Flashify to make a backup, restore and flash.
Remember you can only flash 3 times a day unless you pay for the full version.
Sent from my Nexus 4 using Tapatalk 4

andyabc said:
Yes, yes and yes.
You can use Flashify to make a backup, restore and flash.
Remember you can only flash 3 times a day unless you pay for the full version.
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
No I mean making a backup in twrp, install a custom rom. New version of android comes out: (let's say 5.0 because updating CM for example from 4.3. to 4.3.1 isnt that hard I think), just restore the backup and flash this recovery in fastboot. (without flashify)
Then I will get the OTA?

Thibaultvw said:
No I mean making a backup in twrp, install a custom rom. New version of android comes out: (let's say 5.0 because updating CM for example from 4.3. to 4.3.1 isnt that hard I think), just restore the backup and flash this recovery in fastboot. (without flashify)
Then I will get the OTA?
Click to expand...
Click to collapse
Exactly what I was thinking and it would remain yes, try flashing it.
Sent from my Nexus 4 using Tapatalk 4

andyabc said:
Exactly what I was thinking and it would remain yes, try flashing it.
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
Ok thanks (I ran out of thanks for today)
I think I am going to stay with this TWRP for a while (actually I want CM official nightlies back) and will try this method when KLP comes out. I think I will have my pc back then and will be able to pull the recovery of the image then and I will post if it worked or not!
thank you for your effort mate!

Thibaultvw said:
Ok thanks (I ran out of thanks for today)
I think I am going to stay with this TWRP for a while (actually I want CM official nightlies back) and will try this method when KLP comes out. I think I will have my pc back then and will be able to pull the recovery of the image then and I will post if it worked or not!
thank you for your effort mate!
Click to expand...
Click to collapse
No problem.
Sent from my Nexus 4 using Tapatalk 4

I decided to flash the stock recovery anyway. So now I am fully stock and will get future OTA updates? I actually like the stock rom, but will maybe fllash CM10.2 if nemesis comes with some cool stuff.
Thanks for pulling it for me!

[Q] rooting nexus 4 with 4.3

Hi Guys, I want to root my nexus 4 running 4.3 but I have heard it is not as easy to do since the update, any help please.
P.S: this will be my first attempt at rooting. :fingers-crossed:

I would be interested in knowing how to too.
Background info: I was rooted before this latest update, so my bootloader is still unlocked. Are there any one click method that can work with 4.3?
Sent from my Nexus 4 using xda app-developers app

I used both toolkits that are stickied in the Orig Dev thread to root 4.3. Was extremely simple.
Sent from my Nexus 4 using xda app-developers app

Flash recovery in fastboot and then flash SuperSu in recovery
Swyped from my Nexus 4 using Tapatalk 4

Lord Yurij said:
Flash recovery in fastboot and then flash SuperSu in recovery
Swyped from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
You can also use ClockworkMod's superuser program instead, if you prefer. It has worked flawlessly for me on 4.3.
The 4.3 permission issues have been resolved in both programs (although in different ways).
For superuser go here:
https://play.google.com/store/apps/details?id=com.koushikdutta.superuser&hl=en
Click on "Read More".
Click on the url link for Manual installation with the recovery zip (Recommended if you are having installation issues or are not rooted), and download the file.
Flash recovery in fastboot and then flash superuser in recovery.

Rooting 4.3 is identical to rooting 4.2 (or any other version really) with the exception of requiring an updated su application. The only difference is the implementation, which you as the end user shouldn't have to worry about as long as it's working okay.