For starters, I have an iPad 1, 3G, 16GB. So, after a long time on my good ol' 4.3.3, I finally decided it was time for an upgrade. And, for some unknown reason, I decided that upgrading using iTunes, to the most recent iOS, was the smartest thing to do. Well, it wasn't. So basically, here's my problem, I cannot update, because I keep getting an error 1600 everytime I try to restore. Currently, my iPad is hanging in the Recovery Mode, since it seems to go directly to there now, meaning, I guess everything I had there is already gone. Restoring back to 4.3.3 using SHSH worked just fine, but I really wanted to upgrade. I hope you can help me with my problem. If more info is needed I'm willing to share whatever is needed.