This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 13 December 2017 |
Upload Date | 10 December 2017 |
File Name | iPhone_4.0_64bit_11.2.1_15C153_Restore.ipsw |
File Size | 2.43 GB |
SHA256sum | abe2df1486b1e3f1480d6ba1029771a48665d4454e788a0d6abb8cd580e164be |
MD5sum | 65cc098c56bd4ebc9aeb518f74d9b071 |
SHA1sum | 85124b66bb039b0740d7c8b61257abf1c1d07319 |
Identifier | iPhone6,1 |
cd ~/Downloads
.idevicerestore -e iPhone_4.0_64bit_11.2.1_15C153_Restore.ipsw
and press Enter.