Download iOS 17.3.1 (21D61) for iPhone 15 Plus

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 iPhone15,5
iOS Version 17.3.1
Release Date 2024-02-08
Update Date 2024-02-05
Sha1sum
7324951df305430ab7eb04564179c47277a4b4bc
Sha256sum
0866395a460d94d0d24d32c2336b2dde92780c535d1910d8accb2b16a8db85b1
md5sum
b8b26b8623f5b3d6c29842d71b29833c
Size 7.40 GB
FileName
iPhone15,5_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