3G stuck in recovery with 6.15
Hi guys, i have a stupid problem. I had the 3G working on 4.2.1 with 6.15 using redsn0w but had many problems. So i thought of downgrading to a custom 3.1.2 which worked but cydia had problems, then i tried restoring to a custom 4.1 it failed and did not want to go then i tried 4.2.1 custom and it does not go, now the phone is stuck in recovery and does not wanna come out of it, i tried putting custom 3.1.2 again in itunes but itunes hangs on "preparing iphone for restore" and then gives a 16 something error. What am i doing wrong? Olethros, i need help lol.