This firmware is signed. This means that you can restore to it in iTunes.
| Release Date | 24 May 2021 |
| Upload Date | 12 May 2021 |
| File Name | UniversalMac_11.4_20F71_Restore.ipsw |
| File Size | 12.97 GB |
| SHA256sum | bb92e1404a69d139653354f3ed7554aca2d9aa568a003b8db15f40a9433f3356 |
| MD5sum | de3d7f7fc64c5e41800b4a2d9dcadfa6 |
| SHA1sum | b46f3a411413078c5235f888971faaafd371091e |
| Identifier | Macmini9,1 |
cd ~/Downloads.idevicerestore -e UniversalMac_11.4_20F71_Restore.ipsw and press Enter.