Download iOS 16.6.1 (20G81) for iPhone 8 Plus (GSM)

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 iPhone10,5
iOS Version 16.6.1
Release Date 2023-09-07
Update Date 2023-09-02
Sha1sum
f4cede4bee39c443acdf597fb5ea13744c7c03a5
Sha256sum
21074a007759d27b795a035ee91eb669b9d4f3e5de2159505ce70bb0bc4f9bce
md5sum
814c598e1aa7ee8f52b7b278d9232933
Size 5.73 GB
FileName
iPhone_5.5_P3_16.6.1_20G81_Restore.ipsw
Status

Download IPSW (5.73GB) 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