I just have a little question. I'm trying to install OS 4.0 Beta for about 2 weeks now, but with no succes. I always get Error 1604. I tried like 40times (DFU, Recovery, Another Mac, Another Cable, iReb in Windows and then Plugged in to my mac). Can someone please help me. And yes, i have a developer account and my UDID is registred. Thank You, Victop P.s. I know my english is bad!