This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 10 February 2025 |
| Upload Date | 08 February 2025 |
| File Name | iPhone15,4_18.3.1_22D72_Restore.ipsw |
| File Size | 8.31 GB |
| SHA256sum | efea57a547e0377dd7bf0071a47339887ea996916c28a5b0795758c6cf2d649b |
| MD5sum | 3ad64302ebeb3dac92c70d5e73eae14a |
| SHA1sum | 387fa8b52e811e7ca77ab3ca0c73aa5fc1a98caa |
| Identifier | iPhone15,4 |
cd ~/Downloads.idevicerestore -e iPhone15,4_18.3.1_22D72_Restore.ipsw and press Enter.