Issues with flashing custom kernel - Samsung Galaxy S9 Questions & Answers

Whenever I try to flash a custom kernel, it ends in a bootloop...
I just flash the .zip of the custom kernel in TWRP. Am I doing it wrong?

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Flashing

Can I flash CM boot.img with this?
https://play.google.com/store/apps/details?id=de.mkrtchyan.recoverytools
Also do the new nightlies have TWRP or CWM?
Or this:
https://play.google.com/store/apps/details?id=com.cgollner.flashify
No. And even if you could, your phone would refuse to boot until you flashed a stock kernel again (in case you have locked bootloader, and probably have -- otherwise you would just flash the desired kernel directly through fastboot)...

Flash rom without recovery or boot.

I need to flash a ROM without recovery. Preferable method being with my computer.
were you going to stock or custom rom

Need help in installing custom rom

I just flashed agat recovery 0.2.2 and i tried to install cm 11 on my phone but i got a error 7 and i dont know what i am doing wrong.
You will need to install cm10 BEFORE installing cm11 because you need cwm recovery to flash cm11 and cwm recovery is in cm10.
This one should work: http://forum.xda-developers.com/showthread.php?t=2238252
Don't bother flashing gapps or other zips, just flash the rom then boot into cwm recovery do a full wipe and flash cm11.

twrp flashable stock kernel

I flashed noname kernel r1.8 but it caused battery drain issues on official lineageos, Now i got back to miui 9.6.3 where can I get the original xiaomi kernel zip ?????
It is the same as the boot.img found in the rom zips?
You should backup before flashing custom kernels and just restore your stock boot if you have problems.
Edit: - Use the stock boot.img from lineageos if still on that, not the MIUI rom image.
Unroot by Magisk ( twrp ) will restore stock kernel for you .

stock recovery zip?

Now I have twrp recovery with custom rom but I want to flash stock recovery.Anyone have this?
nikkky said:
Now I have twrp recovery with custom rom but I want to flash stock recovery.Anyone have this?
Click to expand...
Click to collapse
This device hasn´t recovery partition, stock recovery interface is a part of the stock boot, when you flashed a custom rom it was overwritten but if you already flashed the TWRP installer what you can do now is to flash stock boot or a backup of the boot that you´re using but you´ll lose Magisk or a custom kernel if you have it.
The better is then to set up all included Magisk not to flash TWRP installer.

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