Hello, I had Jailbroken my iPhone 4 since JB became available. I decided to restore my device via iTunes to 4.0.1 (Using saved SHSH from Sauriks Server) iTunes didnt give me a fuz about that. While it was restoring the device gets stuck about 2/3 of the way and eventually get error 1603 from iTunes. This is what I have tryed: 1) The obvious, Restore multiple times 2) Standard restore: FAILED 3) Restore to 4.0.2 (Have SHSH to go back): FAILED 4) Remove SIM card and restore: FAILED 5) Rebooted Computer and Used Diff USB port and restored: FAILED I saw that iReb/iH8snow have the ability to overcome these errors on other prev iPhone models BUT i have a Mac and its Windows only, two this is iPhone 4 and its not listed as supported. I am willing to install windows if i have to but am trying to avoid that. Any Tips and help is appreciated.