after jailbreaking with a pre-made custom software with redsn0w, and was very happy with unlocked iphone. I accidentally booted the device on its own. and it got stuck in the apple logo. after a while the phone showed me it's in recovery mode (with the itunes and USB cable screen) I've tried sn0wbreeze with tinyumbrella with different versions, and different setups (which is how i entered pwned DFU mode) and i have finally successfully restored a 4.3 custom firmware, but the phone needs to reboot at the end but it won't get out of pwned DFU(black screen) google searches don't seem to help, and if no one knows how to fix it, I'll either throw it out and buy a used unlocked iphone4 from hongkong.. or bring it to those "iphone fixer"s on the market. I'll be happy to email any log files from my computer.