This firmware is signed. This means that you can restore to it in iTunes.
| Release Date | 15 September 2025 |
| Upload Date | 04 September 2025 |
| File Name | iPhone_4.0_64bit_15.8.5_19H394_Restore.ipsw |
| File Size | 4.88 GB |
| SHA256sum | d72307fe484df379413578be7dacb6d28b0371d6dc8e5d1be6087bf235d24d6e |
| MD5sum | db1d92d4848cf8e31e90f188bde92fdf |
| SHA1sum | 0f4f8fb499551a9b9a3493fe0372604d3ec2dfc0 |
| Identifier | iPhone8,4 |
cd ~/Downloads.idevicerestore -e iPhone_4.0_64bit_15.8.5_19H394_Restore.ipsw and press Enter.