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[Q] Is flashing a kernel as easy as going to recovery and installing it?

Hi i'm new to the att htc one x, just rooted, and installed twrp... then flash cleanrom5. I also noticed clean has a kernel, i did not see an install guide, but i've installed kernels before on my captivate. So what i'm wondering if it's as easy as....
1. place kernel on phone storage
2. reboot into recovery
3. install kernel from recovery
4. reboot
If there anything i am missing or if i am completely off could someone please help me out with this?
Thank you :good:

If you are on the 1.14 hboot (rooted on 2.20 firmware) you can't flash kernels from recovery. You have to do it using fastboot.

redpoint73 said:
If you are on the 1.14 hboot (rooted on 2.20 firmware) you can't flash kernels from recovery. You have to do it using fastboot.
Click to expand...
Click to collapse
Would you mind walking me through that process?
Unless this makes any difference "CleanROM V is based on the latest Asian 2.29 RUU which is Android 4.0.4, Sense 4.1 and is ODEXED!"
not sure if that means i am on 2.29 rooted.

cannon19932006 said:
Would you mind walking me through that process?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1957193
http://forum.xda-developers.com/showpost.php?p=33493959&postcount=2
Sent from my HTC One XL

absolutelygrim said:
http://forum.xda-developers.com/showthread.php?t=1957193
http://forum.xda-developers.com/showpost.php?p=33493959&postcount=2
Sent from my HTC One XL
Click to expand...
Click to collapse
I don't see anything about flashing kernels in that thread.

cannon19932006 said:
I don't see anything about flashing kernels in that thread.
Click to expand...
Click to collapse
the boot.img has the kernel in it, it has to be flashed from fastboot.
heres the kernel. dl.dropbox.com/u/31360541/CleanKERNEL/CleanKERNEL 1.1 - HOX.zip
flash the boot.img from fastboot, then flash the zip from recovery. fastboot flash method http://forum.xda-developers.com/showpost.php?p=33493959&postcount=2
edit: btw, what exploit did you use to achieve root? Was it the x-factor exploit?

cannon19932006 said:
Unless this makes any difference "CleanROM V is based on the latest Asian 2.29 RUU which is Android 4.0.4, Sense 4.1 and is ODEXED!"
not sure if that means i am on 2.29 rooted.
Click to expand...
Click to collapse
Not the firmware you are on now. The firmware you originally achieved root on. More importantly, what version is your hboot (go to hboot, and the version number is listed)?
If your phone was purchased with 2.20 firmware, and you rooted using the new X-factor exploit method, you have the 1.14 hboot.
Hboot 1.14 plugged the hole by which flashing kernels from recovery was possible. So it can only be done by fastboot.

redpoint73 said:
Not the firmware you are on now. The firmware you originally achieved root on. More importantly, what version is your hboot (go to hboot, and the version number is listed)?
If your phone was purchased with 2.20 firmware, and you rooted using the new X-factor exploit method, you have the 1.14 hboot.
Hboot 1.14 plugged the hole by which flashing kernels from recovery was possible. So it can only be done by fastboot.
Click to expand...
Click to collapse
i used x-factor yes, and yes it's 1.14, thank you both for the help.

cannon19932006 said:
i used x-factor yes, and yes it's 1.14, thank you both for the help.
Click to expand...
Click to collapse
Ok, since you used x-factor, make sure to flash your boot.img before flashing the ROM
Same with a kernel. Flash boot.img then the kernel zip

absolutelygrim said:
Ok, since you used x-factor, make sure to flash your boot.img before flashing the ROM
Same with a kernel. Flash boot.img then the kernel zip
Click to expand...
Click to collapse
I already flashed the rom, just not the kernel, i don't remember flashing the boot.img, just following the instructions on the rom's page here
http://forum.xda-developers.com/showthread.php?t=1655011
"Must have twrp Recovery installed with unlocked bootloader! CWM Recovery will cause serious issues!!!
Copy ROM to storage
Reboot to Recovery
Wipe data / Factory Reset in Recovery!
Install ROM and Aroma installer will start.
Choose Options
Let install complete
Reboot to System"
That's how i flashed this rom anyway.
That's funny your in schertz, i live like 5 miles from there in Universal city lol.

cannon19932006 said:
I already flashed the rom, just not the kernel, i don't remember flashing the boot.img, just following the instructions on the rom's page here
http://forum.xda-developers.com/showthread.php?t=1655011
"Must have twrp Recovery installed with unlocked bootloader! CWM Recovery will cause serious issues!!!
Copy ROM to storage
Reboot to Recovery
Wipe data / Factory Reset in Recovery!
Install ROM and Aroma installer will start.
Choose Options
Let install complete
Reboot to System"
That's how i flashed this rom anyway.
That's funny your in schertz, i live like 5 miles from there in Universal city lol.
Click to expand...
Click to collapse
Well, If cleanROM is using the same Kernel as stock, then you got lucky. If they use the same kernel, no need to flash boot.img.
If they are different kernels and you dont flash boot.img, you are now in a bootloop
lol Universal City
not bad

Sorry for so many questions lol, just making sure i do this right.
okay so basically i want to download the kernel and the fastboot drivers posted in your post.
Extract the fastboot drivers, and then unzip the kernel, taking the boot.img from it and placing it into the fastboot directory that i just unzipped.
I then want to boot my phone into hboot and select fastboot
open the command prompt and take it to where the fastboot.exe is.
then type fastboot flash boot boot.img into the command prompt
After all this is done i want to go into recovery and flash the zip of the kernel?
Is that all right?

cannon19932006 said:
Sorry for so many questions lol, just making sure i do this right.
okay so basically i want to download the kernel and the fastboot drivers posted in your post.
Extract the fastboot drivers, and then unzip the kernel, taking the boot.img from it and placing it into the fastboot directory that i just unzipped.
I then want to boot my phone into hboot and select fastboot
open the command prompt and take it to where the fastboot.exe is.
then type fastboot flash boot boot.img into the command prompt
After all this is done i want to go into recovery and flash the zip of the kernel?
Is that all right?
Click to expand...
Click to collapse
Yeap. Don't "extract" the zip, just drag the boot.img out of the zip

absolutelygrim said:
Yeap. Don't "extract" the zip, just drag the boot.img out of the zip
Click to expand...
Click to collapse
Success, THANKS!

absolutelygrim said:
the boot.img has the kernel in it, it has to be flashed from fastboot.
heres the kernel. dl.dropbox.com/u/31360541/CleanKERNEL/CleanKERNEL 1.1 - HOX.zip
flash the boot.img from fastboot, then flash the zip from recovery.
Click to expand...
Click to collapse
Why do you say to flash the boot.img and then zip if boot.img has the kernel in it?
Thank you. R

cimenta said:
Why do you say to flash the boot.img and then zip if boot.img has the kernel in it?
Thank you. R
Click to expand...
Click to collapse
Because the new hboot makes it to where you cant flash kernels through recovery. only fasboot

So why the second flash if the boot.img was flashed via fastboot?
I am just lost in these. Could you recommend any reading except this forum for me to get more understanding? So I don't do anything to my phone?

cimenta said:
So why the second flash if the boot.img was flashed via fastboot?
I am just lost in these. Could you recommend any reading except this forum for me to get more understanding? So I don't do anything to my phone?
Click to expand...
Click to collapse
It wasn't.
boot.img can't be flashed from recovery, it skips it.
Thats why you flash boot.img from fastboot then the ROM from recovery
http://forum.xda-developers.com/showthread.php?t=1963896

absolutelygrim said:
It wasn't.
boot.img can't be flashed from recovery, it skips it.
Thats why you flash boot.img from fastboot then the ROM from recovery
http://forum.xda-developers.com/showthread.php?t=1963896
Click to expand...
Click to collapse
So although ROM zip file contains boot.img when flashing boot.img won't be flashed? That's why we need to flash is separately? Is it important to flash it before flashing ROM?
Thank you.R

I'm also, learning as I go. From reading and multiple failed attempts at flashing ROMs and kernels, I have found the correct way with 1.14 Hboot.
-dl the rom/kernel
-extract only the boot.img file
- save both .zip and boot to your desired folder.
-go into recovery and mount sd card to pc
-transfer .zip file to your phones sd card
-get back into fastboot on your phone
-transfer boot.img to fastboot folder
-from fastboot cmd prompt(if you have win7, open your folder with fastboot in it hold shift+right click and open cmd)
-type "fastboot boot boot.img" without quotes
-go back into recovery and clean cache/delvik
-then install .zip that you copied to the sd card
You should be good to go from there.
If I have left anything out, please feel free to correct.
Sent from my HTC One X using xda app-developers app

Downgrade or smth with firmware 5.18 (at&t one x, one xl)

Hey.
Need you help or advice..
I made a mistake when flashed my ATT One X with the latest firmware(
And now i can't do anything, I mean root or custom recovery.
I have S-OFF and super CID but I don't how to fix this.. to downgrade or to roll back to oldest firmware.
Even to have root will be perfect.
How can I manage this?
Thanks in advance!

vimev said:
Hey.
Need you help or advice..
I made a mistake when flashed my ATT One X with the latest firmware(
And now i can't do anything, I mean root or custom recovery.
I have S-OFF and super CID but I don't how to fix this.. to downgrade or to roll back to oldest firmware.
Even to have root will be perfect.
How can I manage this?
Thanks in advance!
Click to expand...
Click to collapse
According to your bootloader details you are at a good starting point. Here is what I recommend you do from here:
1. Download a custom recovery like TWRP:
http://forum.xda-developers.com/showthread.php?t=2558503
2. flash this in bootloader mode. If you don't know how here is the help thread you need to read through:
http://forum.xda-developers.com/showthread.php?t=2593382
3. Once you have a custom recovery installed, you can flash SuperSu or other root app (google is your friend.)
4. Stick with the rooted rom you have or flash another of your choosing.

Madcat8686 said:
According to your bootloader details you are at a good starting point. Here is what I recommend you do from here:
1. Download a custom recovery like TWRP:
http://forum.xda-developers.com/showthread.php?t=2558503
2. flash this in bootloader mode. If you don't know how here is the help thread you need to read through:
http://forum.xda-developers.com/showthread.php?t=2593382
3. Once you have a custom recovery installed, you can flash SuperSu or other root app (google is your friend.)
4. Stick with the rooted rom you have or flash another of your choosing.
Click to expand...
Click to collapse
Men.. thats great! Thanks a lot!
I was thinking its impossible to make root...

vimev said:
Men.. thats great! Thanks a lot!
I was thinking its impossible to make root...
Click to expand...
Click to collapse
Not impossible for you because your bootloader is unlocked and you are S-Off. You are always able to root and flash.

Hey, I have the same bootloader setup but i am unable to flash a recovery

Grinno said:
Hey, I have the same bootloader setup but i am unable to flash a recovery
Click to expand...
Click to collapse
What happens when you try to flash a recovery?
What recovery are you trying to flash?
Post your own bootloader (Don't show the IMEI)

Madcat8686 said:
Not impossible for you because your bootloader is unlocked and you are S-Off. You are always able to root and flash.
Click to expand...
Click to collapse
exad said:
What happens when you try to flash a recovery?
What recovery are you trying to flash?
Post your own bootloader (Don't show the IMEI)
Click to expand...
Click to collapse
I use EZT toolkit....It runs the commands then said fail (too many links

Grinno said:
I use EZT toolkit....It runs the commands then said fail (too many links
Click to expand...
Click to collapse
Why are you using a toolkit to flash recovery???
Just download from http://goo.im/devs/OpenRecovery/evita
or download the unofficial TWRP from the original android dev section if you plan on flashing an AOSP or CM based Rom and then fastboot flash recovery recovery_filename.img
Easy peasy. Too many links is an error that should have nothing to do with flashing recovery...

exad said:
Why are you using a toolkit to flash recovery???
Just download from http://goo.im/devs/OpenRecovery/evita
or download the unofficial TWRP from the original android dev section if you plan on flashing an AOSP or CM based Rom and then fastboot flash recovery recovery_filename.img
Easy peasy. Too many links is an error that should have nothing to do with flashing recovery...
Click to expand...
Click to collapse
Donno, Maybe fastboot/drivers or messed up. I keep getting cannot load 'recovery.img' unknown error

Grinno said:
Donno, Maybe fastboot/drivers or messed up. I keep getting cannot load 'recovery.img' unknown error
Click to expand...
Click to collapse
You need to type the filename of the recovery file you download. Either the recovery filename you are typing is wrong or the file is not in the folder you are trying to flash from.

exad said:
You need to type the filename of the recovery file you download. Either the recovery filename you are typing is wrong or the file is not in the folder you are trying to flash from.
Click to expand...
Click to collapse
Thanks, Got it to flash..... you were correct i was typing the filename wrong.

Modified Boot Image Android L (5.0.0_LRX21P)

Guys, use this modified boot image to flash the newest Android L (5.0.0_LRX21P)
Flash in Bootloader (this is not a flashable zip)!!!!
Flash the stock root able rom, here available on xda.
Don't worry it's for our FLO device, just a name. Sorry, i was in a hurry.
Have fun

Jerome-X said:
Guys, use this modified boot image to flash the newest Android L (5.0.0_LRX21P)
Flash in Bootloader (this is not a flashable zip)!!!!
Flash the stock root able rom, here available on xda.
Don't worry it's for our FLO device, just a name. Sorry, i was in a hurry.
Have fun
Click to expand...
Click to collapse
Whats modified about it?

use this, if you want to flash the stock rooted rom via twrp etc...
if you use the stock one, your bootloader is locked after flash the stock rom

Jerome-X said:
use this, if you want to flash the stock rooted rom via twrp etc...
if you use the stock one, your bootloader is locked after flash the stock rom
Click to expand...
Click to collapse
Incorrect mate, it's still unlocked after flashing factory images. I flashed factory files yesterday and I only lost root and recovery which I expected to happen.

topgeardave said:
Incorrect mate, it's still unlocked after flashing factory images. I flashed factory files yesterday and I only lost root and recovery which I expected to happen.
Click to expand...
Click to collapse
Correct!
Op tell me exactly what you did here? Your talking about one thing but saying another. I dont get it

scrosler said:
Correct!
Op tell me exactly what you did here? Your talking about one thing but saying another. I dont get it
Click to expand...
Click to collapse
It's just the latest bootloader.img, he thinks if you flash it separately you won't lock your bootloader before flashing the stock rom via recovery.

To my knowledge, nothing locks the bootloader, except you (via fastboot or a toolkit).

So i can install the stock image i downloaded from google and still keep root? What about recovery?
Sorry for noob question, i've only used custom ROMs in the past.

If you flash the stock L image with fastboot, you lose root and recovery but your boot loader stays locked/unlocked (whatever it was before).
To get recovery back, just flash it with fastboot.
To get root back, flash the boot image from the OP or a modified kernel like ElementalX and then flash SuperSU.
Done.
Sent from my LG-D801

Thanks for the answer.

[N_7.0][NPJ25.93-14][TWRP][Boot]TWRP Backup of Stock Boot Partition

DISCLAIMER: I AM NOT LIABLE TO ANY DAMAGE THAT HAPPENS TO YOUR DEVICE BECAUSE OF DOING ANYTHING WRONG.
MOTO G4 PLUS [XT1643]
This is for those who had flashed a custom kernel on their stock ROM and now want to revert to stock.
REQUIREMENTS:
1. TWRP 3.0.3-n2 by @Shreps .
https://forum.xda-developers.com/mo...covery-twrp-3-0-2-r3-moto-g4-g4-plus-t3494337
This one is more updated/maintained than the official 3.0.2 version.
2. 7Zip Compression Utility:
Download and install on your PC. I use this as it gives the maximum ultra level compression. See Downloads below.
PROCEDURE:
1. Download and extract the TWRP.7z using 7Zip.
2. Place the TWRP folder it in the root directory of your INTERNAL STORAGE.
2. Just reboot TWRP once and choose Restore and then choose this: athene_93-14_boot
3. Swipe to restore.
NOTE: As a general recommendation for all zip installations and backup/restore using twrp, Wipe Cache and ART Cache before you Reboot to System.
4. You're DONE
DOWNLOADS:
Google Drive Link for the file:
https://drive.google.com/open?id=0B25DpDahxm52MDlBRlVqNElkaUE
7-ZIP Download Link:
http://www.7-zip.org/download.html
IF YOU WANT ENTIRE STOCK ROM ( TWRP BACKUP) VISIT THIS THREAD BY @Greekgodmerwyn .
https://forum.xda-developers.com/moto-g4-plus/how-to/android-7-0-moto-g4-plus-npj25-93-14-t3544601
HIT LIKE IF I HELPED YOU! :fingers-crossed: :good:

Hey I need the file bit it is in bin so give a alternative link

Can i install this to xt1644 retus?

Dont know bro I just want the 1643 one

dedik46 said:
Can i install this to xt1644 retus?
Click to expand...
Click to collapse
Not tried. Make additional backups and try. :good:

https://drive.google.com/open?id=0B25DpDahxm52MDlBRlVqNElkaUE
Not Found
Error 404
Please re-upload.

nextheart said:
https://drive.google.com/open?id=0B25DpDahxm52MDlBRlVqNElkaUE
Not Found
Error 404
Please re-upload.
Click to expand...
Click to collapse
Oh wait. Try this, @nextheart
https://www.androidfilehost.com/?fid=745425885120722570

@tywinlannister7 Thanks for quick reply.
As far as I can understand, this file should be flashed (restored) after restoring my TWRP back up of nougat stock rom taken in January-2017. Currently I am on RR-MM.
Shall I able to take OTA then?

nextheart said:
@tywinlannister7 Thanks for quick reply.
As far as I can understand, this file should be flashed (restored) after restoring my TWRP back up of nougat stock rom taken in January-2017. Currently I am on RR-MM.
Shall I able to take OTA then?
Click to expand...
Click to collapse
For OTA updates to work, you'd need a stock recovery on your device too; TWRP is a no go. Once you've restored your TWRP backup of your Nougat stock ROM (which hopefully may have the stock boot still), you can flash the stock recovery linked here https://forum.xda-developers.com/moto-g4-plus/how-to/how-to-ota-rooting-nougat-npj-25-93-14-t3601747
I imagine the easiest option is to flash the recovery in fastboot (same as you did with TWRP) using 'fastboot flash recovery recovery.img', then rebooting into recovery.
I think, though I've not tried it with a stock recovery, that you should be able to flash the recovery image in TWRP:
tap Install in the TWRP menu
Select 'install image's
Find your stock recovery image and select
Choose recovery as the image type
Flash and reboot to recovery.
Then, provided your system has a stock kernel, no modifications to your system and a stock recovery (bootloader doesn't matter), you should be able to update via OTA.

@echo92 Thanks for detailed guide.
I had flashed SuperSU on Nougat stock ROM, so stock boot might be affected. Am I right?
In short, I want to sell the device, so I want to return to stock.

nextheart said:
@echo92 Thanks for detailed guide.
I had flashed SuperSU on Nougat stock ROM, so stock boot might be affected. Am I right?
In short, I want to sell the device, so I want to return to stock.
Click to expand...
Click to collapse
You could have directly flashed the latest March 1 Security firmware via fastboot and lock your bootloader too.

tywinlannister7 said:
You could have directly flashed the latest March 1 Security firmware via fastboot and lock your bootloader too.
Click to expand...
Click to collapse
Thank you for pointing out.
Will I lose my IMEI or WIFI MAK or any thing else by fastboot method? Because I have read that some users are losing such things by fastboot method.

nextheart said:
Thank you for pointing out.
Will I lose my IMEI or WIFI MAK or any thing else by fastboot method? Because I have read that some users are losing such things by fastboot method.
Click to expand...
Click to collapse
Shouldn't create any such issues. Anyways, you can make an entire backup of the fsg and other partitions in twrp.
Yes, your data will be wiped though.

Exact steps back to Stock with a clean "System Image"

Hi guys,
what are the exact steps to go back to stock with a clean "System Image" for taking ota updates?
I've made a clean backup via "System Image" in twrp with an unmodified system as stated in the twrp thread before i did anything else (root, etc.).
Thank you in advance

You dont need to. You can flash via ruu zip. Just use the same firmware as the phone is on now.

shivadow said:
You dont need to. You can flash via ruu zip. Just use the same firmware as the phone is on now.
Click to expand...
Click to collapse
Thank's for the reply. But this was not the questions (please don' be mad). But what if i want to?
I did backup the stock recovery and a System Image backup prior to flashing TWRP via fastboot boot twrp-3.1.1-0-ocn.img (point 4/6 in the twrp thread).
What would be the exact steps? Can I just boot normal to twrp-recovery an restore the system image and the stock recovery? Like this:
Thank you in advance

shivadow said:
You dont need to. You can flash via ruu zip. Just use the same firmware as the phone is on now.
Click to expand...
Click to collapse
Flashing RUU via recovery breaks the ability to take OTAs, correct? Where as running RUU exe doesn't? I think i read this somewhere in the xda ruu collection thread.