This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 26 January 2022 |
| Upload Date | 23 January 2022 |
| File Name | iPhone11,8,iPhone12,1_15.3_19D50_Restore.ipsw |
| File Size | 6.50 GB |
| SHA256sum | 83bd1910710ab202efa2ae10964a046424e92f9b435009ae009098240c2dfc55 |
| MD5sum | e73042bffcd508448fd6a939fd73813e |
| SHA1sum | a0231f24de0b2e2fad7d744131130a86a45c2fde |
| Identifier | iPhone12,1 |
cd ~/Downloads.idevicerestore -e iPhone11,8,iPhone12,1_15.3_19D50_Restore.ipsw and press Enter.