✓ This firmware is signed. This means that you can restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | April 7, 2023 |
|---|---|
| Upload Date | April 3, 2023 |
| Filename | UniversalMac_13.3.1_22E261_Restore.ipsw |
| Filesize | 12 GiB |
| SHA256sum | 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8 |
| MD5sum | 238108a4bf8e47b387af0d784680c370 |
| SHA1sum | e8e862f31c6390f5d66c37139dc84493639e14d0 |
| Identifier | MacBookAir10,1 |