This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 08 October 2018 |
| Upload Date | 02 October 2018 |
| File Name | iPhone_4.0_64bit_12.0.1_16A404_Restore.ipsw |
| File Size | 2.86 GB |
| SHA256sum | c2e7e7215f2146e3b5482a797a06de1e5cac29d3543088a1997afdc133f8da15 |
| MD5sum | e8440baa3f81b1020d16282c67f005cc |
| SHA1sum | f72954192e4ef640d25b6c6767aba1cef487b178 |
| Identifier | iPhone6,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.0_64bit_12.0.1_16A404_Restore.ipsw and press Enter.