This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 15 October 2019 |
| Upload Date | 10 October 2019 |
| File Name | iPhone11,2,iPhone11,4,iPhone11,6_13.1.3_17A878_Restore.ipsw |
| File Size | 4.11 GB |
| SHA256sum | eb2d1de4287ac7b4afad401ae3e8778ef3891deb894d53332c8a5774432b936e |
| MD5sum | c22248b52c40a0a73885cf58bf06ff3d |
| SHA1sum | e7e4ece7fbaa146ea5037e4fbabae271fdb23a0d |
| Identifier | iPhone11,4 |
cd ~/Downloads.idevicerestore -e iPhone11,2,iPhone11,4,iPhone11,6_13.1.3_17A878_Restore.ipsw and press Enter.