Black Screen, keyboard disabled when trying to boot OpenCore USB

[ghohenzollern]

Hello!

I'm trying to install on a machine with an Athlon X4 870K processor in an ASrock Motherboard with UEFI version A88M-6/3.1 P1.30
I'm trying to install the Big Sur version. Downloaded, unzipped and flashed it to a 32GB drive with balenaEtcher
I used the EFI directory and the "001 - Desktop - Bulldozer ve Jaguar 4 Core.plist" file from the "OpenCore 0.9.7 Created by yusufklncc" file. I put the EFI folder in the main directory, and the plist file I renamed to config.plist and placed in the EFI/OC directory.

I checked my BIOS settings, Secure Boot and Fast Boot are disabled, so is the COM port, SATA was set to AHCI, the other things don't seem to have options related to them.

When I hit F11 for the boot menu, I have 3 options:
USB: Generic Flash Disk 8.07
UEFI: Generic Flash Disk 8.07
OpenCore

If I choose the UEFI or OpenCore option, the screen goes blank and the keyboard is disabled. The access light on the USB drive stops flashing almost immediately.
If I chose the USB option, I get the following messages:
BOOT MISMATCH!
BOOT FAIL!

This is my first time trying this. I may have missed something. What should I try next?

[code-leech]

Something is wrong with either your Kexts or your Config Plist file. Have you downloaded the Plist file for your correct specifications? Although, there is a chance that either your UEFI settings are wrong or your computer is imcopatible

[yusufklncc]

Any progress?