So I just got a brand new iPhone 4 and it came with 4.1. I just tried updating to 4.2.1 and got error 1013. Stuck on recovery. TU kicks it out of recovery but just does it again. Strange. I hope I didn't get a lemon lol. Now I'm in the process of using redsn0w to create a custom firmware to try to restore to that. I'm updating to 4.2.1 since my last sync with the 3GS was on the same iOS version and I couldn't restore my 4 to that since the 4 is on 4.1. I don't care about updating the baseband since I don't need to unlock anymore and Apple stopped signing 4.1 so TU couldn't save the SHSH for 4.1 anymore. Oh well.