[Request] Unlocked/modded BIOS for Xiaomi/TIMI Redmibook 15 (2021)

BIOS/UEFI Modding BIOS Modding Requests
1

I’d like to mod my Xiaomi laptop (TM2039, RMATG5B1P0407), enabling ReBAR and possibly upgrading the soldered RAM.

The BIOS seems to be a build of InsydeH20 with their own UI frontend.

Here’s the BIOS dump from flashrom: