Download iOS 16.6.1 (20G81) 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 16.6.1
Release Date 2023-09-07
Update Date 2024-06-03
Sha1sum
b9dd7e1b50d4970a68f0d87eb88dafb02ced63b3
Sha256sum
892b25b6d12cc64708de7e69a5fc965b06c3bb1dd3c5027612c18f7885c154cc
md5sum
307813a22a1349d3b51c3ddfc8c8526c
Size 5.97 GB
FileName
iPhone12,1_16.6.1_20G81_Restore.ipsw
Status

Download IPSW (5.97GB) Check device info
Release Notes

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

This update provides important security fixes and is recommended for all users.

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

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