✗ This firmware is not signed. This means you cannot restore to it in iTunes.
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Download (7.65 GB)✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.
iPhone13,1_17.2.1_21C66_Restore.ipsw file that you downloaded.iPhone13,1_17.2.1_21C66_Restore.ipsw file that you downloaded.cd ~/Downloadsidevicerestore -e iPhone13,1_17.2.1_21C66_Restore.ipsw and press enter.cd DownloadsGet-FileHash iPhone13,1_17.2.1_21C66_Restore.ipsw -Algorithm SHA12a851845e7f73349b8b63cfbb7994f241e24bc58. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone13,1_17.2.1_21C66_Restore.ipsw2a851845e7f73349b8b63cfbb7994f241e24bc58. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone13,1_17.2.1_21C66_Restore.ipsw2a851845e7f73349b8b63cfbb7994f241e24bc58. If it doesn't, you may need to redownload the file.| SHA256sum | cc5e9944ca9317a4001354a2502b1cc201e34e8470d91f92051a443f4e8b18e4 |
|---|---|
| MD5sum | 1b9f32d836d2f2d7980c9632549c918a |
| SHA1sum | 2a851845e7f73349b8b63cfbb7994f241e24bc58 |
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:
https://support.apple.com/kb/HT201222