ASRock's new Beta BIOS version 4.07.AS01 for AM5 motherboards includes AMD's latest AGESA 1.3.0.0a, and is available now to download.
ASRock releases a second BIOS update with AGESA 1.3.0.0a to address Ryzen No-POST and boot failures on select AM5 ...
For detailed update procedures, users may refer to the ASRock Instant Flash User guide (AMD) or the ASRock Flashback Feature User guide, depending on motherboard model and supported features.