This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 13 September 2021 |
| Upload Date | 10 September 2021 |
| File Name | iPhone_4.7_14.8_18H17_Restore.ipsw |
| File Size | 4.42 GB |
| SHA256sum | 64c16cfecb80802b55c1962cd609accfcd85437e3843b87851ac53a0d2ea9ef1 |
| MD5sum | 00a8f2535ea1b3c705bad70cffbe80d5 |
| SHA1sum | 37a823f555ccfc38bdf481696a0343e2557fcd1b |
| Identifier | iPhone8,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.7_14.8_18H17_Restore.ipsw and press Enter.