If you unlocked your iPhone and then upgraded its software to iPhone 1.11 you iPhone would be blocked/bricked by Apple. This feature was Added by Apple to fight the unlocking of iPhone. But the new upgrade by Apple iPhone 1.13 will unblock/unbrick you iPhone and bring it back to life.
To fix your unlocked damaged iPhone from 1.11 upgrade follow the easy steps below:
- Put the iPhone in recovery mode
- Connect to iTunes and restore/upgrade the iPhone
- Put your AT&T sim back in and activate the phone using iTunes
- Restart you iPhone and bingo your iPhone will start working.

Apart from fixing up and unblocking your iPhone the new upgrade of iPhone firmware 1.1.3 have a few improvements as well listed below: (more…)