[URL] flash is risky. Dell 64 bit flash tool cannot resurrect bricked mobo after failed flash.  downgrade flash is sometimes impossible w tool if a new version introduces significant update. user may resort to usb programmer to force flash on a bricked CMOs chip, but that will void Dell warranty and such practice link may get cancelled or deleted by Dell moderator.   some user suggested using clover to bypass bios inability to support NVMe boot. NVMe-boot without modding your UEFI/BIOS (Clover-EFI)
I would like to know everything about the 64-bit BIOS Flash Utility - what is it for, and how is it used?  I also want to know about advanced uses.  Can it repair-restore a PC that is dead after a bad BIOS flash?  Can it be used to roll back the current BIOS to an older version? Most importantly, can it be used to flash a slightly modified BIOS file into the BIOS?  (I might add an instruction pointing to a new NVMe M.2 SSD or its driver into the BIOS so that my older PCs can boot off it,) I want everything, including command line parameters. FYI - i have both a Dell Optiplex 7010 MT and a Dell Optiplex 3010 MT.  Those are the ones in whose BIOSes I might add the reference to a new NVME M.2 SSD, which otherwise they won't boot from. Thanks.
How to use 64 bit BIOS Flash Utility - want FULL info