Hi guys, i have an iphone 3gs running 4.2.1 tethered jailbreak, with a 6.15 baseband. The problem is that i unlocked it and when i put in a different sim, it turned off and now it wont turn on. When i boot tethered it gives me a white screen and when i try to stock restore via itunes, again i get a white screen. I tried to do a custom firmware restore with pwned dfu mode and once again i got a white screen. Here is a video that shows the problem i have :
http://www.youtube.com/watch?v=qW8iWnnDUlQ
Any help would be greatly appreciated
http://www.youtube.com/watch?v=qW8iWnnDUlQ
Any help would be greatly appreciated