This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 20 May 2020 |
| Upload Date | 14 May 2020 |
| File Name | iPhone_5.5_P3_13.5_17F75_Restore.ipsw |
| File Size | 3.98 GB |
| SHA256sum | f51951444912388310207d49bcd1db0db123ae7f4810093c986db99be1b56552 |
| MD5sum | 8c39050e8bf4f6c1714f05b6229d9bb3 |
| SHA1sum | a748f6b1177952bb645a7f33691412794af51f53 |
| Identifier | iPhone9,2 |
cd ~/Downloads.idevicerestore -e iPhone_5.5_P3_13.5_17F75_Restore.ipsw and press Enter.