As I stated I did a update on my iPhone to the newest update which is 4.2.1. When I try to update iTunes gives error 1015 which Im not trying to do a custom firmware. I had 4.1 05.15. I've been surfing the web but luckily can't find anything. I tried the newest tinyumbrella, ireb but no luck. I'm stuck in recovery mode. If someone can Please help me