This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 08 February 2024 |
| Upload Date | 05 February 2024 |
| File Name | iPhone13,1_17.3.1_21D61_Restore.ipsw |
| File Size | 7.13 GB |
| SHA256sum | 7b595779bb03b2c1c590601a81230c211b68038a4bf870f020b34a36668ecb80 |
| MD5sum | 062feb7bea2332933a4f48c6bd35a70c |
| SHA1sum | b88b7876af6aed0de1756c0a3f6ac7a14896a34c |
| Identifier | iPhone13,1 |
cd ~/Downloads.idevicerestore -e iPhone13,1_17.3.1_21D61_Restore.ipsw and press Enter.