Ok, so I synced my iPhone 4 with 4.0.1 then I restored it as a new iPhone in order to jailbreak. I read that doing this would prevent the mms and facetime error. The problem is that after I restored as a new iPhone, my old backup is gone... 
Was that supposed to happen? I was under the impression that I could restore as a new iPhone then later apply a previous backup...
Was that supposed to happen? I was under the impression that I could restore as a new iPhone then later apply a previous backup...