Download iOS 16.3.1 (20D67) for iPhone XS Max (China)

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 iPhone11,4
iOS Version 16.3.1
Release Date 2023-02-13
Update Date 2023-02-09
Sha1sum
b6001ed15364db6c69aa0aad04fc18c05bcee2c7
Sha256sum
2053599c598ac6af5c976cbc6bd4d5db5525b7e2a392db51832ccb4ba9b2f680
md5sum
b3f122a208682f17f60a2fb5fa696cb7
Size 5.95 GB
FileName
iPhone11,2,iPhone11,4,iPhone11,6_16.3.1_20D67_Restore.ipsw
Status

Download IPSW (5.95GB) 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