This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 19 September 2019 |
| Upload Date | 27 August 2019 |
| File Name | iPhone_13.0_17A577_Restore.ipsw |
| File Size | 3.87 GB |
| SHA256sum | ccf27ebd52f34f1473e3da350bdd8921d6dd46cb8f38278a4fb404bfcc9c508f |
| MD5sum | d59a11b70d602649ff24e4fd177c48a4 |
| SHA1sum | 0f846623ed3a3015846f3fd846eb8b90be66bfab |
| Identifier | iPhone12,1 |
cd ~/Downloads.idevicerestore -e iPhone_13.0_17A577_Restore.ipsw and press Enter.