[KERNEL][BETA] GrassKernel for Galaxy M21

[Royna]

#include <android/disclaimer.h>
/*
  Your warranty is now VOID
  I am not responsible for any damage you made to your device
  You have been warned
*/
WARN_ON(1);

This is a custom kernel for the Galaxy M21, shipped with Exynos9611, tested on M215FDDU3CVL1
The name "Grass" came from a character of Genshin Impact to fill the background.

Features​

• Disable Samsung securities, debug drivers, etc modifications.
• Checkout and rebase against Android common kernel source, Removing Samsung additions to drivers like ext4,f2fs and more.
• Based on A51 OneUI5 latest kernel sources.
• Compiled with bleeding edge Neutron Clang 17, with full LLVM binutils, LTO (Link time optimization) and -O3.
• Import Erofs, Incremental FS, BinderFS and several backports.
• Supports DeX touchpad for corresponding OneUI ports that have DeX ported.
• Lot of debug codes/configuration Samsung added are removed.
• Upstreamed to 4.14.150 (for now, will be more)
• Added wireguard driver, an open-source VPN driver in-kernel
• More to come...

​

How to flash​

- The kernel is provided with AnyKernel3 zip, which can be just flashed on recovery, it will replace the kernel Image only to this kernel.

Download below

Sources

If you want to support my work
This will link to a friend's PayPal who always helps me.
Donate

 

[Royna]

Reserved

 

[Abdur Rahim Oni]

What is the major difference between the stock kernel and your grass kernel?
what does it improves after installing
why does it says oneui5 in the zip?

 

[Royna]

What is the major difference between the stock kernel and your grass kernel?
what does it improves after installing
why does it says oneui5 in the zip?

Just various ports and removing debugging increases perf a bit
OneUI5 cuz it's based on A51 OneUI5 and build script is like that

 

[w1nk1]

M215FDDU3CVL1 без перепробавал
все тврп рекавери

 

[BobaBoi69]

Just to be sure
is this a kernel or an upgrade to the firmware??
@Royna

 

[Fredin_]

M215FDDU3CVL1 как разблакировать загрузчик без пк

You don't need a pc to unlock bootloader, but you need some device that detects USB like a tv or another phone if you've got an adapter.

But you will need a pc to do everything else, like flashing recovery/magisk.

 

[newt23]

I installed this with LMOdroid 4.1 GSI. Geekbench 6 CPU score before and after:

 

[OldNoobOne]

Just to be sure
is this a kernel or an upgrade to the firmware??
@Royna

Hey friend BobaBoi69 ,
We need GrassKernel for A11 too. I'd love that.
Do you happen to know any custom kernel that works on anything A11 onwards? If yes pls share

 

[BobaBoi69]

Hey friend BobaBoi69 ,
We need GrassKernel for A11 too. I'd love that.
Do you happen to know any custom kernel that works on anything A11 onwards? If yes pls share

i am currently trying out naz kernel and honestly
switch to A12 LPOS REBORN it is an actual evolved and patched version i know the old one had problems but this one is a pure monster more like a beast mode monster
i love the thermal

 

[OldNoobOne]

i am currently trying out naz kernel and honestly
switch to A12 LPOS REBORN it is an actual evolved and patched version i know the old one had problems but this one is a pure monster more like a beast mode monster
i love the thermal

Hi Bobaboi69 friend,
I'm Happy for you
A12 LPOS REBORN Kernel.. do you have link for the kernel or rom ?

Ref: [ https://forum.xda-developers.com/t/...21-2020-21-tukirom-v1-2.4588319/post-88590585 ]

Hey Friend,
I just upgraded one of my SM-M215G devices to official A13 and its OneUI5.1 Core Version (Baseband M215GDDS3CWD1-20230522142126). Though I'm not able to flash any A13 GSI on it using (TWRP-3.5.2-m21-v3.1-A12.tar) , the oem unlock button is partially greyed out but not fully, its still light blue color, dunno whats going on , I relocked the unlockd the bootloader 3rd time now with no interference in setup process but I feel Shamshung might have introduced Bootloader Unlock Waittime just like in case of Shaomi devices :-/