I have the avic f 900 witht the hacked 3.0 that came out on here a while ago and recently the unit just wont startup. Now before i get yelled at i have been searching for half hour and cant find it. If anyone would please be so kind and point me in the right direction and let me know where i can get some 2.0 backup files to downgrade my unit and proper instructions. Would be greatly appreciated and thank you in advance.

I have them and I responded to your PM.

You put the 3.0 x series flash drive image on your unit and didn't back up first? Forget about being yelled at for not searching, how about getting yelled at for being eh, a not too bright? haha.