What should I do if the BIOS gets corrupted or fails to update properly?

Use the ASUS CrashFree BIOS 3 utility to recover the corrupted BIOS. Download the latest BIOS file from https://www.asus.com/support/, rename it to ASUS.CAP or PH610MA.CAP, copy it to a USB flash drive, and insert it while turning on the system. The utility will automatically detect and load the file into ASUS EZ Flash 3 to restore the BIOS. (Page 2-4)