✓ This firmware is signed. This means that you can restore to it in iTunes.
| Release Date | 20th August 2025 |
|---|---|
| Upload Date | 18th August 2025 |
| Filename | UniversalMac_15.6.1_24G90_Restore.ipsw |
| Filesize | 16.8 GB |
| SHA256sum | 3d87686b691ac765eb6a6b3082b2334e2af9710096a00432dd519af89ff2ea78 |
| MD5sum | 2c22273091d69ea84723a1f2d36332f3 |
| SHA1sum | a19ba56bb931769580060647a466c5b2d09da761 |
| Identifier | iMac21,1 |