This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 08 November 2023 |
| Upload Date | 03 November 2023 |
| File Name | iPhone15,2_17.1.1_21B91_Restore.ipsw |
| File Size | 7.45 GB |
| SHA256sum | 81f7688000bc8c768e9ebbbdd06ceb2b1b2f2da2ccbcc33e8d9ef3f32cbda393 |
| MD5sum | 88920f692bb5636be07046abc3a276fa |
| SHA1sum | 7f52e48f60324ce603caa1a3af741c0967e5b006 |
| Identifier | iPhone15,2 |
cd ~/Downloads.idevicerestore -e iPhone15,2_17.1.1_21B91_Restore.ipsw and press Enter.