Hello, I have iPhone 4 CDMA Verizon version with 5.1.1 iOS. One day it shut down and it won't work anymore (black screen). When I connect it computer iTunes says that it is in recovery mode. I've tried to recover it, but got 3194 error. Then I removed all entries with ***.apple.com from my host file. After that I've got 1600 error. I've put my phone with iREB into Pwned DFU mode, but I still keep getting 1600 error. I've tried restore to original and custom firmwares, but error is still the same. I have no idea why iREB doesn't help to restore my iPhone. Maybe someone have any ideas how to fix it? P.S. I'm using Windows 7 64bit with latest iTunes version. Also I've tried to restore with another computer, which uses Windows 7 32bit version, but error is the same. Also I've tried a lot of different cables and usb hubs, but nothig helped. iPhone was jailbroken, before it died.