This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 30 September 2019 |
| Upload Date | 28 September 2019 |
| File Name | iPhone12,1_13.1.2_17A860_Restore.ipsw |
| File Size | 3.82 GB |
| SHA256sum | 8823ec5799313de4886fd05d4590b7d57fb441248729bb719d7b733d0a78e5e1 |
| MD5sum | 516bf031af5dccff7ddfee1bd7730de8 |
| SHA1sum | 1e69c3c1b2cd1c45875fcddcfe9ad9905c481c38 |
| Identifier | iPhone12,1 |
cd ~/Downloads.idevicerestore -e iPhone12,1_13.1.2_17A860_Restore.ipsw and press Enter.