This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 19 September 2019 |
| Upload Date | 27 August 2019 |
| File Name | iPhone_5.5_13.0_17A577_Restore.ipsw |
| File Size | 3.59 GB |
| SHA256sum | 630fcfa0ec4d680b48a4dccb803a0a1b851bcb70da6e291830427d10411b1e71 |
| MD5sum | aeebb8d05fbccf88da77d076d6ffc96e |
| SHA1sum | 64e04bb1e53e9900c79463535e59e7d9c297773b |
| Identifier | iPhone8,2 |
cd ~/Downloads.idevicerestore -e iPhone_5.5_13.0_17A577_Restore.ipsw and press Enter.