This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | Invalid Date |
| Upload Date | 24 January 2013 |
| File Name | iPhone4,1_6.1_10B142_Restore.ipsw |
| File Size | 0.90 GB |
| SHA256sum | 6f2bba2c14276ad2372aea5123dd10a06b3cc38c537fe7b4700032fdd0fd712f |
| MD5sum | 73c9f3100ea2ad8d2bfa00df9ea01aab |
| SHA1sum | e49a848895823c61b7a1bb1f22650766a9ea9157 |
| Identifier | iPhone4,1 |
cd ~/Downloads.idevicerestore -e iPhone4,1_6.1_10B142_Restore.ipsw and press Enter.