Download the BIOS update from ASUS (Ez Flash)
Use 7z (or file-roller, etc) to extract the BIOS file
Run this command:
sudo fwupdtool install-blob [put name of file with extension]
Select the ‘System Firmware’ option from the presented menu
After fwupdtool finishes, select ‘Y’ to reboot.
After reboot rog ally boot into ez flash mode and install new bios
Important: DISABLE SECURE BOOT FIRST