Download iOS 13.2.3 (17B111) 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 13.2.3
Release Date 2019-11-18
Update Date 2019-11-14
Sha1sum
fb4dade1ac416bb2563c71bbc15cf4a1e1bf2661
Sha256sum
104b38046e06f778965e5904540670c5f31ef11cc6c1126586cb06f508805cfa
md5sum
f3f652b91d63321f70c7e89d3e8e9955
Size 3.86 GB
FileName
iPhone12,1_13.2.3_17B111_Restore.ipsw
Status

Download IPSW (3.86GB) Check device info
Release Notes

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

iOS 13.2.3 includes bug fixes and improvements for your iPhone. This update:

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

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