✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | November 17, 2021 |
|---|---|
| Upload Date | November 12, 2021 |
| Filename | iPhone13,1_15.1.1_19B81_Restore.ipsw |
| Filesize | 6.1 GiB |
| SHA256sum | b473ba0e2191bdd60224b097fd75ae76462c7e2c9dcc683572b31f8dbeed8548 |
| MD5sum | 94934af2baeec80e8ef4ce5ba08a6f48 |
| SHA1sum | 0786cbb4ff34c6e36520f65c1f9258b9fe409255 |
| Identifier | iPhone13,1 |
This update provides important security updates and is recommended for all users.
For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222