This firmware is signed. This means that you can restore to it in iTunes.
| Release Date | 10 February 2022 |
| Upload Date | 07 February 2022 |
| File Name | UniversalMac_12.2.1_21D62_Restore.ipsw |
| File Size | 13.17 GB |
| SHA256sum | 0f33f36f4d01b022e71f7a3a39fc34b67000109f9ec13762f1a39984cef00a46 |
| MD5sum | 85b6a7a2757ceee9a51a487b26cf877d |
| SHA1sum | acb57f8af1cd1a62f3d1a5a0010cc18a97ff308f |
| Identifier | MacBookPro18,1 |
cd ~/Downloads.idevicerestore -e UniversalMac_12.2.1_21D62_Restore.ipsw and press Enter.