✗ 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 | iPhone12,8_17.2.1_21C66_Restore.ipsw |
| Filesize | 6.8 GiB |
| SHA256sum | 1bbafd16778272a6fa66d208e8cc3c88e1e6dbc36d853916655e3f7a42c0d0a9 |
| MD5sum | b9aca5aebdb9278aa1454a64c999aeeb |
| SHA1sum | 2f56490b772c6ebcf30039cf2ae15e6ea67b742b |
| Identifier | iPhone12,8 |
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: