I dont think that the name of the file should make you a problem. You can change the name freely to its original name and flash it. But when you type the comand, enter the new name you have given to the file. Edit. How exactly are you trying to upgrade the bios ? Try to upgrade first with the unmodded bios, to see if everything is well. Once you've manage to upgrade with the original bios, use the same tools and comands, just rename the modded bios to the name of the original bios file.