This firmware is signed. This means that you can restore to it in iTunes.
| Release Date | 26 January 2026 |
| Upload Date | 24 January 2026 |
| File Name | iPhone_4.0_64bit_15.8.6_19H402_Restore.ipsw |
| File Size | 4.88 GB |
| SHA256sum | e22fda7ebb45d468abfaa10878eb9f2831711927fe1956971a7cfd1a386d96e1 |
| MD5sum | 829cf3c999cf979fa1860a36d638ade9 |
| SHA1sum | 897096cd1a8496889dcc001198d2daf85c74f793 |
| Identifier | iPhone8,4 |
cd ~/Downloads.idevicerestore -e iPhone_4.0_64bit_15.8.6_19H402_Restore.ipsw and press Enter.