Palit 970 Flash fails

[traxim]

 

Hello Guys,

i failed my flash on my 970. i created a bootable usb stick and have nvflash version 5.63. I download an original bios.rom from palit and everytime i use the command nvflash -4 -5 -6 original.rom i get an error in DOS

It Say Firmware image filename must have a *.rom or *.nvr extension

But it is a .rom without space or something else. i tried to rename it o1.rom bios.rom old.rom nothing works. can pls anybody help me.