Download iOS 18.4 (22E240) 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 18.4
Release Date 2025-03-31
Update Date 2025-03-26
Sha1sum
041f236e21571d06ab69ae05fd4965a9dec1ba4b
Sha256sum
6b3d5106457284d97f76d7c329fc2559c33f9afa388ff1e8346b5a1c8514a6b3
md5sum
5edb6b920a876701d69869c255e63eb6
Size 9.13 GB
FileName
iPhone17,3_18.4_22E240_Restore.ipsw
Status

Download IPSW (9.13GB) Check device info
Release Notes

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

Apple Intelligence (All iPhone 16 models, iPhone 15 Pro, iPhone 15 Pro Max)

Apple Vision Pro App

Apple News+

Photos

This update also includes the following enhancements and bug fixes:

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:

https://support.apple.com/100100