Download iOS 13.1 (17A844) 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 not being Signed by Apple

Firmware Identifier iPhone12,1
iOS Version 13.1
Release Date 2019-09-24
Update Date 2019-09-17
Sha1sum
c7241c63208bd99aa6c372175fbf9f77f132b332
Sha256sum
6664a56a6fe01024de1d527e2245c0560158d15cb395f844acb6e602b27aad8b
md5sum
a6bf9d0ed9a182afa4a0c71c6eedae67
Size 3.83 GB
FileName
iPhone12,1_13.1_17A844_Restore.ipsw
Status

Download IPSW (3.83GB) 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