iOS 26.3.1 (23D8133) for iPhone 15 Pro

✓ This firmware is signed. This means that you can restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

Release DateMarch 4, 2026
Upload DateMarch 1, 2026
FilenameiPhone16,1_26.3.1_23D8133_Restore.ipsw
Filesize10 GiB
SHA256sumf381332b62a5a48cce8971a423cb16f6b8a34dd0c96a344c29c89538fdfcdf97
MD5sum8e1f757c525e65d85fd7776dccef2f1c
SHA1sum61a0995daf7f3d6e69335f1421e337b7ed00662f
IdentifieriPhone16,1

iOS 26.3.1 Release Notes

Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides bug fixes for your iPhone

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

https://support.apple.com/100100

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