I'm seriously about to have a heart attack and need immediate help. Been trying to upgrade iOS for 4 hours now. My (I believe) 94th try ended up with a 3004 error and my phone shutting down. When I turned it back on it says to plug it in iTunes. When I plug it in the phone goes to restore, then shuts down and gives me the error again. I can't even access ios4, restore, do anything. It's effectively bricked. Please help!