This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 11 October 2017 |
| Upload Date | 07 October 2017 |
| File Name | iPhone_5.5_11.0.3_15A432_Restore.ipsw |
| File Size | 2.61 GB |
| SHA256sum | 62c29320b6eaa21586746461449ea767094ae7c52c26533336bde84e0635e608 |
| MD5sum | a213763bcfaa9f74f2c07ae9d7f7643c |
| SHA1sum | 6a388b0dcbf38225b97600b0eb4d171743364a38 |
| Identifier | iPhone8,2 |
cd ~/Downloads.idevicerestore -e iPhone_5.5_11.0.3_15A432_Restore.ipsw and press Enter.