When I try to flash I get the error message: The Programs files BIOS Lock string does not match with your system. How can I flash the BIOS?

You will need to add an NBL switch to get the BIOS flashed.

You will want to run the flash manually. First look at the files on the
disk and make note of the .EXE file and the .BIN file.

Boot the system from the flash disk and then choose to exit from the
menu. You should be at an A: prompt.

Now type in the name of the .EXE file (Bflash, awdflash) followed by
the .BIN file, and add the NBL switch.

For Example, if you have part number 6a6lmf09 with the BFLASH.EXE utility:

BFLASH 6A6LMF09.BIN /PY ORIGINAL.BIN /SY /NBL