Hi! I didn't have any luck reviving my other W580i after successfully flashing my firmware and everything and turning off the phone....and after that I didn't turn on anymore. I was wondering which things should really be backed up (GDFS, BACKUP FULL FIRMWARE ATT) I want to do both things, how can I do them? Also my phone didn't turn on anymore when flashing new accoustics, can anyone with a modded 580i tell me what firmware are they running and which CustPack so I can avoid having to exchange my phone again. Thanks again for your time!