How To Guide [AOSP][GSI][12] GSI Guide + Fixes for S21 Series (Exynos)

[Haridhayal]

This is a guide for flashing GSI on the S21 Ultra (exynos) and the fixes needed. Bug list is also available.
Guide, Fixes & Bug list

Screenshots
LineageOS 19.0 GSI

I dont have time to check all the xda threads for S21/Plus/Ultra. I 'd recommend joining the telegram group.

Kernel Source for kernel used in this guide
Kernel Source

{Post edited and moved. Please refer to here}

 

[tqmatvey]

*RESERVED*

 

[lambik333]

Good Android security update ! ;-)

 

[afro972]

Not working for Snapdragon version ?

 

[jericho246]

Good work! I tried PE GSI on my S21U Exynos a while ago but it was stuck in 48hz so the experience was not smooth at all and I reverted to One UI stock ROM. 60hz is acceptable.

Which GSI would you say has the best battery life? LineageOS, Pixel Experience or Phh AOSP? Or are they all pretty much the same in this aspect?

 

[bhammler]

deleted

 

[almora9]

are optical zooms used. 100x..

 

[vlubosh]

are optical zooms used. 100x..

just 40x

 

[kisielek]

What about VoLTE and VoWiFi?