This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 19 February 2018 |
| Upload Date | 16 February 2018 |
| File Name | iPhone_5.5_11.2.6_15D100_Restore.ipsw |
| File Size | 2.62 GB |
| SHA256sum | 654754dcda34f593b9a1a6bae82808fc9825b4992d32188283f31a3e318755ae |
| MD5sum | f37c4bd7e0f44b01d13dd42a4af49180 |
| SHA1sum | d830b3db666fb8afcf50aa88eb5d56453e826874 |
| Identifier | iPhone7,1 |
cd ~/Downloads.idevicerestore -e iPhone_5.5_11.2.6_15D100_Restore.ipsw and press Enter.