More specifically, why can't they be modded? Apparently my Compaq notebook which runs an InsydeH20 variant can't be un-whitelisted. Within sp51202, opening "01604F14.BIN" with andyp's tool reads "Not Phoenix/Dell/Insyde/EFI BIOS". What exactly has Insyde software done here to make these ROM's unmoddable? I tried opening the ROM in a hex editor and can't really decrypt much of anything.