Download iOS 13.1 (17A844) for iPhone 11 Pro Max

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 iPhone12,5
iOS Version 13.1
Release Date 2019-09-24
Update Date 2024-06-03
Sha1sum
f931039e111866d3b07cce895cd1e70a77218ec2
Sha256sum
555a46f68f127f2bb3cd131fe4355a8d2ae5ba3051c0fee7edecb4dd8812f334
md5sum
e132ab17e666c1cc75f062d0d960983c
Size 4.28 GB
FileName
iPhone12,3,iPhone12,5_13.1_17A844_Restore.ipsw
Status

Download IPSW (4.28GB) Check device info
Release Notes

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

iOS 13.1 includes bug fixes and improvements, including AirDrop with Ultra Wideband technology on iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max, suggested automations in the Shortcuts app, and the ability to share ETA in Maps.

AirDrop

Shortcuts

Maps

Battery Health

This update also includes bug fixes and other improvements. This update:

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

https://support.apple.com/kb/HT201222