Download iOS 16.3.1 (20D67) for iPhone 8 (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 iPhone10,4
iOS Version 16.3.1
Release Date 2023-02-13
Update Date 2023-02-09
Sha1sum
d414bb4e0b911cf0d47b143bd867375781068813
Sha256sum
3722d9763386d0078443463708f779e12e48a041720771cad5390c91c9006b1e
md5sum
44bfabc0dfe2bb71fdf7c9085c6a27f9
Size 5.38 GB
FileName
iPhone_4.7_P3_16.3.1_20D67_Restore.ipsw
Status

Download IPSW (5.38GB) Check device info
Release Notes

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

This update provides important bug fixes and security updates for your iPhone including:

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

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