I have an iPhone 4, 01.59.00 BB recently on 4.3.1 Sn0wbreeze (SHSH saved). I updated to 1.2.4 Ultrasn0w and now my unlock is lost. I activated it through RedSn0w (custom sn0wbreeze ipsw) this April and it has worked perfectly since.
I have tried uninstalling, reinstalling, and downgrading ultrasn0w to 1.2.1/2 , but no luck on any of them. I have even tried upgrading to 4.3.3 with Sn0wbreeze 2.7.3.
I really need some help to get my phone back. It sits with the apple logo for 1 minuts before starting up and when it does, there is no carrier...I have even tried the Airplane mode on/off maneuver and no luck. I tried the reinstall, power off, respring method. I even tried the install, pop SIM, restart, off 3G, insert sim, on Airplane, wait for no service, then reinsert SIM, but again, nothing but No Service.
Can anyone help?
I put pictures of it here: http://www.ifans.com/forums/showthre...10#post2862710