This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 19 December 2023 |
Upload Date | 16 December 2023 |
File Name | iPhone12,1_17.2.1_21C66_Restore.ipsw |
File Size | 6.81 GB |
SHA256sum | ff373763bb1fe50fb7a19a7f1084c217336a173da9a27afcb72092f13858e937 |
MD5sum | 6d68561cb7574f7b9d618b6fdd18697b |
SHA1sum | 658e5a63e1adedcb43a2672f26f0b1751be55fff |
Identifier | iPhone12,1 |
cd ~/Downloads
.idevicerestore -e iPhone12,1_17.2.1_21C66_Restore.ipsw
and press Enter.