This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 26 September 2017 |
| Upload Date | 21 September 2017 |
| File Name | iPhone_4.0_64bit_11.0.1_15A402_Restore.ipsw |
| File Size | 2.43 GB |
| SHA256sum | d9fa2268bfdb16f8b017dc4aa94696a98835d61f23759d1c41a60146f5f8e98a |
| MD5sum | 62dc98196c2fcf817413a9bbaec1f39e |
| SHA1sum | 7bf104697a7279f41663ba17dc805a45bafb0c7e |
| Identifier | iPhone6,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.0_64bit_11.0.1_15A402_Restore.ipsw and press Enter.