Download iOS 26.4 (23E246) for iPhone 16

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

✅ This IPSW firmware is Signed

Firmware Identifier iPhone17,3
iOS Version 26.4
Release Date 2026-03-24
Update Date 2026-03-21
Sha1sum
cf0f8a640fe7893cabf144c77d33d05c00cd7c13
Sha256sum
c476c6bb6d252036876ffeb051fccd9bdf9d98e7c2c507d4cf957cb164a354cb
md5sum
5f508b31f6c73da987d2e390ae70e12d
Size 10.29 GB
FileName
iPhone17,3_26.4_23E246_Restore.ipsw
Status

Download IPSW (10.29GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

Apple Music

Accessibility

This update also includes the following enhancements:

For information on the security content of Apple software updates, please visit:

https://support.apple.com/100100

Some features may not be available in all regions or on all iPhone models. To learn more, please visit:

https://www.apple.com/ios/feature-availability/

Software updates, like this one, add new features and improvements that may affect performance and/or battery life. To learn more, please visit:

https://support.apple.com/125039

IPSW File Download FAQ