✗ This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 13th December 2017 |
|---|---|
| Upload Date | 10th December 2017 |
| Filename | iPhone_4.7_11.2.1_15C153_Restore.ipsw |
| Filesize | 2.66 GB |
| SHA256sum | a50333cdc2199845c9e4ccc080bc68c0f30a5b22cc87ff30765d2594781e7cb7 |
| MD5sum | d2ad5a1613a62b5170615d97d3de29b2 |
| SHA1sum | 202b14e1e0f2cdbffc9a08c3aff9a75a4d9c1eee |
| Identifier | iPhone8,1 |
iOS 11.2.1 fixes bugs including an issue that could disable remote access to shared users of the Home app.
For information on the security content of Apple software updates, please visit this website: