This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 26 July 2021 |
| Upload Date | 22 July 2021 |
| File Name | iPhone_4.0_64bit_14.7.1_18G82_Restore.ipsw |
| File Size | 4.39 GB |
| SHA256sum | a274ba2f3473acdcabb2a851a5e0306ac7794d467ec3b3bd7c61075dc9cedf32 |
| MD5sum | 9a3eb7eac450ed5ce81b07b5c85b1d82 |
| SHA1sum | d5c956023bccc2ac2fe9ebc0b0af363084c8a0f8 |
| Identifier | iPhone8,4 |
cd ~/Downloads.idevicerestore -e iPhone_4.0_64bit_14.7.1_18G82_Restore.ipsw and press Enter.