✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | October 1, 2021 |
|---|---|
| Upload Date | September 29, 2021 |
| Filename | iPhone_4.0_64bit_15.0.1_19A348_Restore.ipsw |
| Filesize | 5.0 GiB |
| SHA256sum | 5f99518217bafda3037590e50398f1953eced02675823e02c7ee7232bb268f4d |
| MD5sum | 341334cf305b608ed3cf2f5f4697493c |
| SHA1sum | 3e43cdc95adf04fe36f6ae9e78fe5396688d553f |
| Identifier | iPhone8,4 |
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