Download iOS 26.3.1 (23D8133) for iPhone 11

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 iPhone12,1
iOS Version 26.3.1
Release Date 2026-03-04
Update Date 2026-03-01
Sha1sum
67b059db5a597c00574c14b35fb5756066cfe1f1
Sha256sum
57905a2176dcccde68f44993cc0132924b7982419824ca788967fa6238587bd9
md5sum
d9b82ca7f698ec36c0b6aa3eebd1845c
Size 8.88 GB
FileName
iPhone12,1_26.3.1_23D8133_Restore.ipsw
Status

Download IPSW (8.88GB) Check device info
Release Notes

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

Design

Apple Intelligence

Camera

Photos

Phone

Messages

CarPlay

Maps

Music

Wallet

Apple Games

Protecting Kids Online

Accessibility

Other

For information on the security content of Apple software updates, please visit:

https://support.apple.com/100100

Some features may not be available in all regions or on all iPhone models. To learn more, please visit:

https://www.apple.com/ios/feature-availability/

Software updates, like this one, add new features and improvements that may affect performance and/or battery life. To learn more, please visit:

https://support.apple.com/125039

IPSW File Download FAQ