Download iOS 26.3 (23D127) 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 Signed

Firmware Identifier iPhone15,5
iOS Version 26.3
Release Date 2026-02-11
Update Date 2026-02-07
Sha1sum
4132d33160e664010691d74ebf1e9cf07d01c334
Sha256sum
a6a6406c174da07eb82d2bcd1a35685eb63ce9621ec6007aea5bda82320c6074
md5sum
cbf53a21e6392048a487eedc54c84ed2
Size 9.45 GB
FileName
iPhone15,5_26.3_23D127_Restore.ipsw
Status

Download IPSW (9.45GB) 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