Download iOS 17.2.1 (21C66) for iPhone 15 Pro

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 iPhone16,1
iOS Version 17.2.1
Release Date 2023-12-19
Update Date 2023-12-16
Sha1sum
1a6c1a2d0e90c3273b8296c7aa702b3b60486989
Sha256sum
c5855b65a804e267925bc569da8fb3477691fcb6f085613653798145453e99d5
md5sum
16145c5a819cdfaca3458ff5aa3974e1
Size 7.57 GB
FileName
iPhone16,1_17.2.1_21C66_Restore.ipsw
Status

Download IPSW (7.57GB) 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