This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 09 March 2015 |
| Upload Date | 04 March 2015 |
| File Name | iPhone4,1_8.2_12D508_Restore.ipsw |
| File Size | 1.46 GB |
| SHA256sum | 7057b2cb3f06fb7354741984ce9759445cf9b21ee400e0558b108b67452f398b |
| MD5sum | e9148eb6e903787c79bd3372bf6facf5 |
| SHA1sum | 926ba7adb8624022cd41d313f1a5748e9845ff6e |
| Identifier | iPhone4,1 |
cd ~/Downloads.idevicerestore -e iPhone4,1_8.2_12D508_Restore.ipsw and press Enter.