Download iOS 26.4 (23E246) for iPhone 16 Plus

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 iPhone17,4
iOS Version 26.4
Release Date 2026-03-24
Update Date 2026-03-21
Sha1sum
73f30838b7ee6ca1ec923eaffece37d406c5ae86
Sha256sum
196fe6bd4b9e12b76373a5574b53252525de4eb6efbb8bf0d9e7cfc84c443664
md5sum
46f6783f9c3d3d232fdbbdab5de048d2
Size 10.27 GB
FileName
iPhone17,4_26.4_23E246_Restore.ipsw
Status

Download IPSW (10.27GB) 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