This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 31 August 2022 |
| Upload Date | 23 August 2022 |
| File Name | iPhone_4.0_64bit_12.5.6_16H71_Restore.ipsw |
| File Size | 2.81 GB |
| SHA256sum | 1ac1652d50047c4ac4d9a396e78b0dcdf243fb88e929cd7403dd58e012e2d3ea |
| MD5sum | 8044f6783811e1454ed673d813e2dafd |
| SHA1sum | e3b4bc620abb63591739c90996c549d08964d65d |
| Identifier | iPhone6,2 |
cd ~/Downloads.idevicerestore -e iPhone_4.0_64bit_12.5.6_16H71_Restore.ipsw and press Enter.