This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 27 March 2017 |
Upload Date | 20 March 2017 |
File Name | iPhone_4.0_64bit_10.3_14E277_Restore.ipsw |
File Size | 2.34 GB |
SHA256sum | 12f99f4cc47fc31360be972805beca88de1bd59f23ab8ebb42de7816d6072dab |
MD5sum | 4ad25b30e9d6645d27cc74bf91fd1c4c |
SHA1sum | ba0a738b8213f64c6a01e8da1e8473c5501fd0c9 |
Identifier | iPhone6,1 |
cd ~/Downloads
.idevicerestore -e iPhone_4.0_64bit_10.3_14E277_Restore.ipsw
and press Enter.