✗ This firmware is not signed. This means you cannot restore to it in iTunes.
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Download (5.23 GB)✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.
iPhone_4.0_64bit_15.8.1_19H380_Restore.ipsw file that you downloaded.iPhone_4.0_64bit_15.8.1_19H380_Restore.ipsw file that you downloaded.cd ~/Downloadsidevicerestore -e iPhone_4.0_64bit_15.8.1_19H380_Restore.ipsw and press enter.cd DownloadsGet-FileHash iPhone_4.0_64bit_15.8.1_19H380_Restore.ipsw -Algorithm SHA1a585babfdf3c8e35b6458d0f6eee0f17211f1309. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone_4.0_64bit_15.8.1_19H380_Restore.ipswa585babfdf3c8e35b6458d0f6eee0f17211f1309. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone_4.0_64bit_15.8.1_19H380_Restore.ipswa585babfdf3c8e35b6458d0f6eee0f17211f1309. If it doesn't, you may need to redownload the file.| SHA256sum | 068e40ccd502cd787802b0a99469106392399d6feb71a2e02630d0f32e9953c7 |
|---|---|
| MD5sum | 84b17852cb2504ad9e5445507c47d689 |
| SHA1sum | a585babfdf3c8e35b6458d0f6eee0f17211f1309 |
This update provides important bug fixes and security updates and is recommended for all users.
For information on the security content of Apple software updates, please visit this website:
https://support.apple.com/HT201222