New version of Insyde BIOS update files use an exe self-extracting BIOS update. You can download the BIOS file and the exe self-extracting file from the following link:
please use Base64 Decode
aHR0cHM6Ly9wYW4ucXVhcmsuY24vcy9lM2U1ZDRjZjk2Zjk=
To extract the BIOS file from the exe, refer to the following link: Dragon 16 BIOS Unlocking Failure Process and Secure Boot Switch Method - Bilibili
You can search for the “UMA Frame buffer Size” as shown in the image.
As shown in the image, H2OUVE cannot select “Variable Editor,” so it’s causing some issues.
You can attempt another method outlined in this link: Unlocking CFG Lock for Hackintosh - Universal Guide. Modifying Hidden BIOS Settings - Bilibili
Using the “grub_setup_var” tool with the command “setup_var AmdSetupRPL 0x46 0x800” didn’t work as expected.
Attempting another method, I used UniversalAMDFormBrowser to view the Device Manager and found that “AMD CBS” has been removed or hidden.
Goal: The objective is to modify the value of “UMA Frame buffer Size” from the BIOS.