✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | June 1, 2020 |
|---|---|
| Upload Date | May 28, 2020 |
| Filename | iPhone_4.0_64bit_13.5.1_17F80_Restore.ipsw |
| Filesize | 3.5 GiB |
| SHA256sum | adc9efd3f7b24e2c64c65de7926c206f22599d550d23f03762af1aef08103160 |
| MD5sum | 4377444a9ab97ee3973a82ddc78f078d |
| SHA1sum | ed798a3b035a026a2bffd664e8aa0b9192323aab |
| Identifier | iPhone8,4 |
iOS 13.5.1 provides important security updates and is recommended for all users.
Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222