RE: Dell Insprion 620/Vostro 260 NO Bios Setting for AHCI
What i understand is that you
- started the tool
- replaced the file
- you pressed the "update" button
- you saw some progress and a message the the update finished?
Than i would expect that if you reenter the bios you should find the new option. This is the way to proove the success of the procedure.
During the update the file is "burned" into the bios chip on your hardware.
What do you mean with "go back to the unpatched file" ?