This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 27 September 2019 |
| Upload Date | 24 September 2019 |
| File Name | iPhone12,1_13.1.1_17A854_Restore.ipsw |
| File Size | 3.82 GB |
| SHA256sum | d0bd755fda36d87bc2a4415d6a572576554ad50a5ff9976587b6eef314690800 |
| MD5sum | 33d20fe8942e4e8716fc4ebfc98ac25e |
| SHA1sum | bfd66718c1cad758d1a3e447a689c7293adf1882 |
| Identifier | iPhone12,1 |
cd ~/Downloads.idevicerestore -e iPhone12,1_13.1.1_17A854_Restore.ipsw and press Enter.