[Q] Can't boot the device after flashing stock kernel - Nexus 7 Q&A, Help & Troubleshooting

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

Related

any way to disable the notification about the ota

its getting damn annoying. I don't want to update yet until there's a clean way with clockwork or something
Sent from my Nexus S using XDA App
can I flash the stock recovery then update to 2.3.1 and reflash clockwork?
or can I just update over clockwork?
all that I've done so far is unlock the bootloader, install clockwork, and root.
Sent from my Nexus S using XDA App
jaker.the.skater said:
can I flash the stock recovery then update to 2.3.1 and reflash clockwork?
or can I just update over clockwork?
all that I've done so far is unlock the bootloader, install clockwork, and root.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
as of now my understanding is that the "stock" recovery cannot be flashed over clockwork mod. he is working on a recovery to allow this
Why don't you just accept it? If it fails because of ClockworkMod then you will never see it again.
Sent from my Nexus S using Tapatalk
so can I flash the ota from rom manager?
Sent from my Nexus S using XDA App
TheBiles said:
Why don't you just accept it? If it fails because of ClockworkMod then you will never see it again.
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
because I didn't know if it would mess anything up. didn't want to try it on a brand new phone
Sent from my Nexus S using XDA App
jaker.the.skater said:
because I didn't know if it would mess anything up. didn't want to try it on a brand new phone
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Uh... It's an official update. Why would it mess anything up?
Sent from my Nexus S using Tapatalk
because i didnt know if clockwork affected it all.
but its irrelevant now, i installed the update and re rooted and everything so im good.
jaker.the.skater said:
because i didnt know if clockwork affected it all.
but its irrelevant now, i installed the update and re rooted and everything so im good.
Click to expand...
Click to collapse
Clockwork Recovery doesn't affect that. People are spreading misinformation.
It's modified boot.img's that are preventing updating. If you used one of the easy root methods, such as superboot, it replaces the stock boot.img with a modified one... this causes a MD5 mismatch when trying to update.
To fix it, you need to get the stock boot.img, and flash it back before updating. You can update via CWR (I did it myself).
im all updated now so im good thank you for explaining that though
Luxferro said:
Clockwork Recovery doesn't affect that. People are spreading misinformation.
It's modified boot.img's that are preventing updating. If you used one of the easy root methods, such as superboot, it replaces the stock boot.img with a modified one... this causes a MD5 mismatch when trying to update.
To fix it, you need to get the stock boot.img, and flash it back before updating. You can update via CWR (I did it myself).
Click to expand...
Click to collapse
Where'd you get the stock boot.img?
TheBiles said:
Where'd you get the stock boot.img?
Click to expand...
Click to collapse
You can get a 2.3.0 boot.img that works with fastboot here : http://forum.xda-developers.com/showpost.php?p=10027638&postcount=1

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

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

[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:

HELP!!!!!!

Hey guys I need your help I tried to flash a rom to my verizon lg g2, and it fail, that's not the problem, my problem is that when a restored my back up my phone gets stucked in the lg logo. I didnt have this problem before, i flashed roms and then i restored my phone back normaly but this time i get stuck in a bootloop...
Try to flash another rom.
Sent from my VS980 4G using XDA Premium 4 mobile app
Esteway.619 said:
Try to flash another rom.
Sent from my VS980 4G using XDA Premium 4 mobile app
Click to expand...
Click to collapse
how can i flash another rom?
marki089 said:
how can i flash another rom?
Click to expand...
Click to collapse
If your using tarp flash into recovery and ADB push the new to your phone
Robshr said:
If your using tarp flash into recovery and ADB push the new to your phone
Click to expand...
Click to collapse
i manage to flash the cloudyflex rom but when i flash the rom it boots up in recovery automatically

Categories

Resources