Hi all. I have an iphone 4 and upgraded it to ios 5 beta 3 today. Don't like it too buggy with my phone. So I want to downgrade it back to 4.3.3. Orignally when I had 4.3.3. it was jailbroken and I have been having problems putting it back to it. I get error 1604 and just blank errors at times. I tried using itunes 10.5, 10.4, & 10.3 nothing works. Anyhelp would be great. Thanks!