✗ 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 | iPhone13,4_17.2.1_21C66_Restore.ipsw |
| Filesize | 7.2 GiB |
| SHA256sum | e54c05c5a383ba9845713b057117e56d576fca3601d892f1f36ef635b050731e |
| MD5sum | accd4718bc2111e9a0cd9d5b86cb0c03 |
| SHA1sum | 2a31d3bbab2031bcd7b0cd6620b8874bf0e3d2cf |
| Identifier | iPhone13,4 |
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: