This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | Invalid Date |
| Upload Date | 16 February 2013 |
| File Name | iPhone4,1_6.1.2_10B146_Restore.ipsw |
| File Size | 0.90 GB |
| SHA256sum | 80091d5cbd1730539eed256c60e61d26b26439a34b33ee419714d1365a4f0565 |
| MD5sum | 5a59274d119990ecdead2a22b1af26ee |
| SHA1sum | 40392e8b3cf6934e639374a215cae7859f83f02c |
| Identifier | iPhone4,1 |
cd ~/Downloads.idevicerestore -e iPhone4,1_6.1.2_10B146_Restore.ipsw and press Enter.