This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 01 October 2021 |
| Upload Date | 29 September 2021 |
| File Name | iPhone_4.7_15.0.1_19A348_Restore.ipsw |
| File Size | 5.01 GB |
| SHA256sum | 35ad939936c039887971a9617495c5d3954760d91c1c8fd729c174e5a61bcbcb |
| MD5sum | aa785f3414fa05365f10f0ffb1e7a132 |
| SHA1sum | 7aee713741e99e6d5f2913e6ad134c7d1a8a158e |
| Identifier | iPhone8,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.7_15.0.1_19A348_Restore.ipsw and press Enter.