Download iOS 17.1.1 (21B91) 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 17.1.1
Release Date 2023-11-08
Update Date 2023-11-03
Sha1sum
12ab57c12a0a9036a21ecf5c462a11ed6305f538
Sha256sum
5ad53006572f4fd4128a9e561ab93eb0632b0d927f64c69bd67c61b813e43f96
md5sum
b391e8ee74c8f3bcce2308fc59fa4ddc
Size 7.47 GB
FileName
iPhone15,5_17.1.1_21B91_Restore.ipsw
Status

Download IPSW (7.47GB) 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