✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | December 19, 2023 |
|---|---|
| Upload Date | December 16, 2023 |
| Filename | iPhone15,3_17.2.1_21C66_Restore.ipsw |
| Filesize | 7.4 GiB |
| SHA256sum | 956f4a84ba1de91e9fdb8c4c3f6f2ad5adbefcc4217be62f67a889381258379a |
| MD5sum | ad77a9838c94d25fe94c3382d8d319e4 |
| SHA1sum | 636870f78995cb5aacd98a6e32f49b03c4035860 |
| Identifier | iPhone15,3 |
This update provides important bug fixes and is recommended for all users.
For information on the security content of Apple software updates, please visit this website: