✗ 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 | iPhone12,3,iPhone12,5_17.2.1_21C66_Restore.ipsw |
| Filesize | 6.9 GiB |
| SHA256sum | e135107807517e6f60202a26806cf7ea7ee625b1bbbb59d8b966414af0ff92a5 |
| MD5sum | c4f1e21c276108c510c32be8291d04cb |
| SHA1sum | 6b0be6e23dedcf9c3f43b983a99102a383fed499 |
| Identifier | iPhone12,3 |
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: