Hello, I have a locked iPhone 3gs. Its not AT&T My baseband is 05.13.04 My iOS version is 6.0.1 Its a new BR I don't think I can unlock the version 6.0.1 so I have decided to downgrade it. I just found the only shsh blobs saved for the current phone are for the versions 5.0.1 and 4.1. So I tried stitching 5.0.1 IPSW and 5.0.1 SHSH and tried restoring it with iTunes in pwned DFU mode. It threw and error 1600 which means its not in pwned DFU even though it is in it. Can anyone please help me in fixing it?