This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 07 February 2019 |
| Upload Date | 05 February 2019 |
| File Name | iPadPro_12.9_12.1.4_16D57_Restore.ipsw |
| File Size | 2.81 GB |
| SHA256sum | |
| MD5sum | de4b6dcc59c94a70580378f444284570 |
| SHA1sum | a0b3f51db6c2b7619c1c14d3cae535b8cc62926f |
| Identifier | iPad6,7 |
cd ~/Downloads.idevicerestore -e iPadPro_12.9_12.1.4_16D57_Restore.ipsw and press Enter.