This firmware is signed. This means that you can restore to it in iTunes.
| Release Date | 19 July 2017 |
| Upload Date | 15 July 2017 |
| File Name | iPhone_4.0_32bit_10.3.3_14G60_Restore.ipsw |
| File Size | 1.86 GB |
| SHA256sum | 8d105cb8174b7538fef3297251fc9debc287292257bd29c792addf5a4ab7ad2e |
| MD5sum | f47afaea4682a482d5cba0b6aef7cefb |
| SHA1sum | db8a4d22bda6b9a88b429eb439b5721ceb4e9fd3 |
| Identifier | iPhone5,1 |
cd ~/Downloads.idevicerestore -e iPhone_4.0_32bit_10.3.3_14G60_Restore.ipsw and press Enter.