Download iOS 17.3.1 (21D61) for iPhone 15

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

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPhone15,4
iOS Version 17.3.1
Release Date 2024-02-08
Update Date 2024-02-05
Sha1sum
c1345d505d034f470fa05fcc8026a4d58dd8b63c
Sha256sum
6220c321a50777ac071e0bf1fef138017c5ab24d24973178e32d823756ede3f5
md5sum
e46e657d5a104e179ad7b330880a8386
Size 7.40 GB
FileName
iPhone15,4_17.3.1_21D61_Restore.ipsw
Status

Download IPSW (7.40GB) Check device info
Release Notes

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

Phone

Messages

FaceTime

StandBy

Widgets

AirDrop

Keyboard

Safari and Passwords

Music

AirPlay

AirPods

Maps

Siri

Visual Look Up

Health

Privacy

Accessibility

This release also includes other features and improvements:

Some features may not be available for all regions or on all Apple devices. For more information, please visit this website:

https://www.apple.com/ios/ios-17

Some features may not be available for all regions or on all iPhone models. For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222