✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | March 4, 2026 |
|---|---|
| Upload Date | March 1, 2026 |
| Filename | iPhone13,4_26.3.1_23D8133_Restore.ipsw |
| Filesize | 9.4 GiB |
| SHA256sum | 9ef98520b9870c4101eb74eaf6d75072e3bf001b313f931b2d42d79a65b6499b |
| MD5sum | 79c71d025428904af13c0f318b902c96 |
| SHA1sum | 367da7f0788225d281b013f8fc7532fe1b76a61f |
| Identifier | iPhone13,4 |
| Tags | iOS iOS 26.3.1 iPhone 12 Pro Max |
This update provides bug fixes for your iPhone
For information on the security content of Apple software updates, please visit this website: