KGB - Kepler BIOS Editor/Unlocker

[LedHed]

http://forums.guru3d.com/showpost.ph...13&postcount=1

-5 means : --overridetype = Allow firmware and adapter PCI device ID to mismatch.
-6 means : --overridesub = Allow firmware and adapter PCI device ID to mismatch.
-4 override switch for force flashing mismatched sub-vendor or hardware ID's (often required for flashing a BIOS from a different vendor)

this is the "longest" way to flash, you are telling it GPU ID #1 and then using all the overrides:

OVERRIDE SWITCH -4
nvflash --index=1 -4 -5 -6 BIOS.ROM (enter) (BIOS.ROM is example name)
There is an override switch for force flashing mismatched sub-vendor or hardware ID's (often required for flashing a BIOS from a different vendor);
This command will flash your GPU with the new BIOS that you selected by typing the name of the BIOS.

From reading that thread it just sounds like that is the "advanced" way to enter the flash command while the other is the shorthand or "basic" way. I guess if something doesn't work with the shorthand way, you try the overrides. I had to use the --protectoff command on my card in order to flash while others do not need to, I guess it all depends on which card/manufacturer you have.