So what i did:
Tried to flash dm-verity zip under the recovery but i got a boot loop so i flashed back the original boot.img from the 11.0.7 global rom via fastboot.
After this i tried to boot into fastbootd but i couldn't because of the recovery (idk why). So i flashed back the original recovery.
So i booted into fastbootd, flashed this rom: https://forum.xda-developers.com/pr...velopment/aosp-10-0-quack-phh-treble-t3992559 (the arm64-ab-gapps one)
Erased userdata and cache and boom it works.
I tried mobile data, bluetooth, speakers, wifi, camera and everything worked for me. The camera app isn't the best in the rom so i downloaded open camera from playstore.
I also successfully boot into GSI based on android 11...
But how we go back miui??:confused