QUOTE(trioptimumonline @ Sep 24 2006, 05:21 AM)
I think he is saying he has a drive flashed with an old commodore4eva firmware, and he wants to put new firmware on the drive so it will read backups better. The problem seems to be that he lost the backup of his original drive firmware, and he's wondering if it's ok to flash over the old commodore4eva firmware (since he lost his backup and can't re flash the original first), correct?
Anyway, if that's indeed what you're asking, I believe most of the newer firmwares will allow you to upgrade - that is, flash over the old modified firmware instead of only the original - because they extract the key from the whatever firmware is on the drive and patch it on to the new firmware being flashed. But, I wouldn't try it until someone confirms this - you don't want to risk bricking your drive. Also, backup your existing commodre4eva firmware before you touch it, since it has your key (you can always pull it out manually by hex later if you need to) or else you could brick your 360.
the new gary firmware can be flashed overtop of any previous one. i wouldnt recommend the birdy though