Okay so I came home to find my iphone in recovery mode and tried to restart it but it wouldn't which I've been waiting to happened for the past couple years so heres the real problem..I used 4.2.1 firm with 6.15 bb and i'm trying to stay with that because it worked awesome for me. I've tried restoring it back into 4.2.1 using a custom firmware but itunes just continues to say "preparing for your phone" or whatever. Also it will not go into dfu mode at all just stuck in recovery..I've tried tiny umbrella to exit recovery and it goes into the boot but goes straight into recovery still not alowing me to go into dfu..any ideas? hope so! thanks!