Restore Stock Nexus 7 Kernal for JRO03D - Nexus 7 Q&A, Help & Troubleshooting

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

Related

Stock ROM zip file?

Is there any stock ROM zip file for recovery flash?
Sent from my Nexus 7
Miracle.vl63 said:
Is there any stock ROM zip file for recovery flash?
Sent from my Nexus 7
Click to expand...
Click to collapse
Not one you flash in cwm.
Sent from my R800i using xda app-developers app
Oww I meant a stock ROM zip file that can be flashed in recovery mode.. sorry for my english
Sent from my Nexus 7
Miracle.vl63 said:
Oww I meant a stock ROM zip file that can be flashed in recovery mode.. sorry for my english
Sent from my Nexus 7
Click to expand...
Click to collapse
Nope- sorry.
Sent from my Nexus 7 using xda app-developers app
Emmm... them is there any computer program that upgrades firmware? Like Samsung Kies
Sent from my Nexus 7
Miracle.vl63 said:
Is there any stock ROM zip file for recovery flash?
Sent from my Nexus 7
Click to expand...
Click to collapse
Are you thinking of this possibly? https://developers.google.com/android/nexus/images#nakasijro03d
Kind of, but they arent recovery flashable..
Sent from my Nexus 7
This is stock http://forum.xda-developers.com/showthread.php?t=1929270
You can select root or not when installing, it uses aroma installer.
I would flash the odexed rather than de-odexed as I read that some people have issues with that.
Here is the latest bootloader, I flashed this first http://forum.xda-developers.com/showthread.php?t=1928915
Also the toolkits (stickied in development section) have the ability to do a stock rom. That's not from recovery though.
stonebear said:
This is stock http://forum.xda-developers.com/showthread.php?t=1929270
You can select root or not when installing, it uses aroma installer.
I would flash the odexed rather than de-odexed as I read that some people have issues with that.
Here is the latest bootloader, I flashed this first http://forum.xda-developers.com/showthread.php?t=1928915
Also the toolkits (stickied in development section) have the ability to do a stock rom. That's not from recovery though.
Click to expand...
Click to collapse
Do they suport the official OTA?
And does the offical OTA also upgrades the bootloader?
Sent from my Nexus 7

[Q] Can't boot the device after flashing stock kernel

Hi,
I flashed Trinity Kernel a while back and wanted to go back to root. So I got the stock kernel from here:
http://forum.xda-developers.com/showthread.php?t=1803724
and flashed it after wiping cache/dalvik. I rebooted device and now its stuck at the Google screen. Its rooted and unlocked. Any help?
I allways hve this problem flashing stock kernel. Try uding the boot.img that works for me.
Sent from my Nexus 7 using xda premium
mirrored said:
Hi,
I flashed Trinity Kernel a while back and wanted to go back to root. So I got the stock kernel from here:
http://forum.xda-developers.com/showthread.php?t=1803724
and flashed it after wiping cache/dalvik. I rebooted device and now its stuck at the Google screen. Its rooted and unlocked. Any help?
Click to expand...
Click to collapse
reflash your rom. depending on your rom, the stock kernel might not work(like cm10). reflashing your rom will install whatever kernel came with it.
leelaa said:
I allways hve this problem flashing stock kernel. Try uding the boot.img that works for me.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
what is uding?
simms22 said:
reflash your rom. depending on your rom, the stock kernel might not work(like cm10). reflashing your rom will install whatever kernel came with it.
Click to expand...
Click to collapse
I'm on stock and just rooted. How can I get just the stock kernel? The only link I found bricked my device
mirrored said:
what is uding?
I'm on stock and just rooted. How can I get just the stock kernel? The only link I found bricked my device
Click to expand...
Click to collapse
Thats a typo, should say using
Sent from my Nexus 7 using xda premium
leelaa said:
Thats a typo, should say using
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
how do you use the boot.img? flash it somehow?
mirrored said:
how do you use the boot.img? flash it somehow?
Click to expand...
Click to collapse
flash the boot.img in fastboot, put it in the same folder as fastboot and type.. fastboot flash boot boot.img

Reflash stock kernel 4.2.2

Hi everyone! I've got a little problem...I'm on 4.2.2 stock ROM and Franco kernel, now I stupidly forgot to make a backup of the 4.2.2 stock kernel and I want to flash my N4 back to it.
How do I proceed?? I tried to find a flashable zip of the latest kernel but the only one I managed to find was the 4.2.1 one.
Thanks in advance!
Sent from my Nexus 4 using xda app-developers app
ichigo663 said:
Hi everyone! I've got a little problem...I'm on 4.2.2 stock ROM and Franco kernel, now I stupidly forgot to make a backup of the 4.2.2 stock kernel and I want to flash my N4 back to it.
How do I proceed?? I tried to find a flashable zip of the latest kernel but the only one I managed to find was the 4.2.1 one.
Thanks in advance!
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Here is the link to the 4.2.2 stock kernel https://www.dropbox.com/s/9zl70f9w8x1ojok/boot.img. Flash in fastboot.
R: Reflash stock kernel 4.2.2
Can I directly flash it from the custom recovery?
Sent from my Nexus 4 using xda app-developers app
ichigo663 said:
Can I directly flash it from the custom recovery?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
No, with adb in fastboot mode.
If you don`thave adb platform-tools installed check the first line in mu signature how to set it up.
R: Reflash stock kernel 4.2.2
I do have it! Thanks for the help!
Sent from my Nexus 4 using xda app-developers app

Upgrading to 4.4 kit Kat

Hey guys quick question my n4 is rooted and running cm10.1.3. I never bothered to upgrade to 4.3, so my radio, kernel and bootloader are stock 4.2.2. Is it better to get the ota update and be up on things or flash stock kernel, boot loader and radio for 4.4 when ever there available? Or maybe factory image?
Sent from my Nexus 4 using xda app-developers app
Just flash the stock images for kit Kat when they are available, right now back up all your data
Sent from my Nexus 4 using xda app-developers app
sacramento458 said:
Hey guys quick question my n4 is rooted and running cm10.1.3. I never bothered to upgrade to 4.3, so my radio, kernel and bootloader are stock 4.2.2. Is it better to get the ota update and be up on things or flash stock kernel, boot loader and radio for 4.4 when ever there available? Or maybe factory image?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
my friend as this will pop up all over the forum the best thing to do is just wait for a rooted version to show up. I did not upgrade my bootloader and I have not had any issues with 4.3 which mind you is a great running OS you should try it.
I dont understand having root then unrooting to flash stock which you obviously dont like since you run cm and then wait to root it all over again to back an upgraded rooted version of cm...
aanonymoushuman said:
Just flash the stock images for kit Kat when they are available, right now back up all your data
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Alright thanks will do
Sent from my Nexus 4 using xda app-developers app
Question on the way for the custom recovery+kernel guys on 4.3 what is the best to upgrade besides wiping your entire phone and flashing the stock images entirely?.
I think i know 2 ways just not sure they are recommended, 1st is flashing stock kernel + returning recovery to stock (should get OTA)
2nd is flashing only the system.img and the bootloader me thinks.
Feel free to verify this.
:good:
playya said:
my friend as this will pop up all over the forum the best thing to do is just wait for a rooted version to show up. I did not upgrade my bootloader and I have not had any issues with 4.3 which mind you is a great running OS you should try it.
I dont understand having root then unrooting to flash stock which you obviously dont like since you run cm and then wait to root it all over again to back an upgraded rooted version of cm...
Click to expand...
Click to collapse
You make a lot of sense ,its more of curiosity and so I won't brick my nexus. So I can get away with not upgrading my bootloader for 4.4?
What about kernel, do I need to update that for 4.4 or is that judgement call?
Sent from my Nexus 4 using xda app-developers app
sacramento458 said:
You make a lot of sense ,its more of curiosity and so I won't brick my nexus. So I can get away with not upgrading my bootloader for 4.4?
What about kernel, do I need to update that for 4.4 or is that judgement call?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
you are asking questions that trial and error are going to figure out for us. Kernels of course if you are on a 4.4 rom you would use a 4.4 kernel. Upgrading your bootloader may or may not be needed but we wont know until kitkat starts popping. everyone said you needed to upgrade bootloader for 4.3 but I have never had any issue at all.... Just wait it out and read read read
Tricepz said:
Question on the way for the custom recovery+kernel guys on 4.3 what is the best to upgrade besides wiping your entire phone and flashing the stock images entirely?.
I think i know 2 ways just not sure they are recommended, 1st is flashing stock kernel + returning recovery to stock (should get OTA)
2nd is flashing only the system.img and the bootloader me thinks.
Feel free to verify this.
:good:
Click to expand...
Click to collapse
Not to sure but as long as you're on stock ROM and stock kernel you should be fine although I don't know if custom recovery keeps you from getting update.
Sent from my Nexus 4 using xda app-developers app
playya said:
you are asking questions that trial and error are going to figure out for us. Kernels of course if you are on a 4.4 rom you would use a 4.4 kernel. Upgrading your bootloader may or may not be needed but we wont know until kitkat starts popping. everyone said you needed to upgrade bootloader for 4.3 but I have never had any issue at all.... Just wait it out and read read read
Click to expand...
Click to collapse
Thanks for the clarification, appreciate the support.
Sent from my Nexus 4 using xda app-developers app
sacramento458 said:
Thanks for the clarification, appreciate the support.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
no problem hopefully you can pass it on to others like you who may be unsure of what to do...
playya said:
no problem hopefully you can pass it on to others like you who may be unsure of what to do...
Click to expand...
Click to collapse
Absolutely bro
You do have to be on stock recovery, stock bootloader for the update to go thru properly otherwise it'll fail.
Tricepz said:
Question on the way for the custom recovery+kernel guys on 4.3 what is the best to upgrade besides wiping your entire phone and flashing the stock images entirely?.
I think i know 2 ways just not sure they are recommended, 1st is flashing stock kernel + returning recovery to stock (should get OTA)
2nd is flashing only the system.img and the bootloader me thinks.
Feel free to verify this.
:good:
Click to expand...
Click to collapse
If you are still on stock rom and you just have custom kernel+recovery, U could do the following for not using any current apps or files.
- Wait till your favorite Toolkit (e.g Wug) get updated for 4.4 and then download the official factory rom.
- Extract it and keep all separate zips, like radio, bootloader,system etc.
- Unroot and flash stock kernel
- Flash all previous zips, EXCEPT user.img which will delete everything
- Reroot and U r ready to flash again custom kernel
Maybe a noob question but my n4 is rooted. Will this cause any problems withe the update?
Sent from my Nexus 4 using xda app-developers app
RASTAVIPER said:
If you are still on stock rom and you just have custom kernel+recovery, U could do the following for not using any current apps or files.
- Wait till your favorite Toolkit (e.g Wug) get updated for 4.4 and then download the official factory rom.
- Extract it and keep all separate zips, like radio, bootloader,system etc.
- Unroot and flash stock kernel
- Flash all previous zips, EXCEPT user.img which will delete everything
- Reroot and U r ready to flash again custom kernel
Click to expand...
Click to collapse
The original stock kernel of 4.3 is on the bootloader.img on the google source code aye?
Thanks, now we just need to wait for the official 4.4 on google's developers.
Tricepz said:
The original stock kernel of 4.3 is on the bootloader.img on the google source code aye?
Thanks, now we just need to wait for the official 4.4 on google's developers.
Click to expand...
Click to collapse
Here a direct link for stock kernel 0.84 from JWR66V factory image
http://d-h.st/cIJ
Hello,
My phone has already had the radio upgraded to latest so it can run 4.3. I am rooted, have TWRP 2.6.3.0, will I be ok to flash the PA 4.4 and gapps? I keep posts about folks losing their sdcard data and their custom recovery being removed (not sure how!).
Thanks.
Schur1k said:
Maybe a noob question but my n4 is rooted. Will this cause any problems withe the update?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Do you have a custom recover?
Sent from my Nexus 4 using xda app-developers app
Schur1k said:
Maybe a noob question but my n4 is rooted. Will this cause any problems withe the update?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Do you have a custom recovery?
Sent from my Nexus 4 using xda app-developers app
maritimesbob said:
Hello,
My phone has already had the radio upgraded to latest so it can run 4.3. I am rooted, have TWRP 2.6.3.0, will I be ok to flash the PA 4.4 and gapps? I keep posts about folks losing their sdcard data and their custom recovery being removed (not sure how!).
Thanks.
Click to expand...
Click to collapse
I'm sure that radio doesn't affect your ability to flash certain ROMs so you shouldn't have a problem flashing 4.4. As far as losing SD data not sure how that's happening.
Sent from my Nexus 4 using xda app-developers app

Status 7 error Help

Hey Guys,
i need some help,
i am currently on slim kat 4.4.2 rom, but im trying to flash the new miui 4.2.14 build but that rom is 4.2.2 i believe, and i get status 7 error while trying to clean flash it through latest philz touch recovery,
how can i fix this to be able to flash the miui 4.2.2 rom??
thanks!
Did you check to see if MD5 matches? File might be corrupt.
Sent from my SPH-L720 using Tapatalk
cris_epic said:
Hey Guys,
i need some help,
i am currently on slim kat 4.4.2 rom, but im trying to flash the new miui 4.2.14 build but that rom is 4.2.2 i believe, and i get status 7 error while trying to clean flash it through latest philz touch recovery,
how can i fix this to be able to flash the miui 4.2.2 rom??
thanks!
Click to expand...
Click to collapse
Yeah it's a good download, this always happens when I'm trying to flash a jellybean ROM can it be because I'm on mk2?
Sent from my SPH-L720 using xda app-developers app
daniel4653 said:
Did you check to see if MD5 matches? File might be corrupt.
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
Yeah it's a good download, this always happens when I'm trying to flash a jellybean ROM can it be because I'm on mk2?
Sent from my SPH-L720 using xda app-developers app
cris_epic said:
Yeah it's a good download, this always happens when I'm trying to flash a jellybean ROM can it be because I'm on mk2?
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
Go to Philz thread for your phone.. In the FAQ he tells us how to get past that. It has to do with the updater script and alls you have to do is uncheck the option in recovery that says something like... Use old updater script... Something to that effect. Again read his FAQ and you'll see what I'm talking about.
I had the same thing happening with my phone just a few days ago and that fixes it.
Sent From My Verizon S4

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