Use MMtool (UEFI tool as option), motherboard should be already with same version bios. Backup of the full SPI is a MUST for safeguarding urself, as always a flash mode is an operation of RISK and no one will guarantee nothing to u in this mod or any other mod, ur call only
Donations via PAYPAL / REVOLUT, if u think the guy deserves it, else to the Win-Raid community on the bottom of the page, as it deserves for all the gathered information.