This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 13 September 2021 |
Upload Date | 10 September 2021 |
File Name | iPhone12,8_14.8_18H17_Restore.ipsw |
File Size | 4.96 GB |
SHA256sum | 655ad5f0f4a69f355042da304a0e1d089b15faa2e848673aef8784ea899b5504 |
MD5sum | 66627db86b7ed053b877d3b8179d3773 |
SHA1sum | 8aa97a4c92290fa912d80e6188ce77fcfdec2ce2 |
Identifier | iPhone12,8 |
cd ~/Downloads
.idevicerestore -e iPhone12,8_14.8_18H17_Restore.ipsw
and press Enter.