Manual document .pdf
1. Use tool ( TL866 or 610P ...etc ) backup BIOS has password.
2. Open BIOS use software HxD remove password.
3. Done and Programming.
You need to be a hardware technical to read bios backup
if you don't have tool EEPROM (BIOS) programmer don't buy this service. ( no refund )
How to remove password Bios Apple & Add, edit Serial Number 1.3
Remove the password does not need new BIOS. ( Password BIOS or iCloud )