Download iOS 12.3 (16F156) 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 12.3
Release Date 2019-05-13
Update Date 2019-05-08
Sha1sum
3b657fa9fa68ec334bf63bc039e77de7ff7acc30
Sha256sum
914c1e09366678cc2635a8c8e547d99a38d1e9189c0b09e78f354e3f83cbcd90
md5sum
be92d8fbc98c7b05dfd7ee33afc51f59
Size 3.41 GB
FileName
iPhone11,4,iPhone11,6_12.3_16F156_Restore.ipsw
Status

Download IPSW (3.41GB) Check device info
Release Notes

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

iOS 12 brings performance improvements and exciting new features to iPhone and iPad. Photos introduces new features to help you rediscover and share the photos in your library, Memoji—a new, more customizable Animoji—make Messages more expressive and fun, Screen Time helps you and your family understand and make the most of the time spent on devices, Siri Shortcuts deliver a faster way to get things done with the ability for any app to work with Siri, augmented reality becomes even more engaging with the ability for developers to create shared AR experiences, and new privacy features help protect you from being tracked on the web. This update introduces new features and improvements to:

Performance

Photos

Camera

Messages

Screen Time

Do Not Disturb

Notifications

Siri

Augmented Reality

Measure

Privacy and Security

Apple Books

Apple Music

Apple News

Stocks

Voice Memos

TV

Apple Podcasts

Accessibility

Other features and improvements

* Testing conducted by Apple in May 2018 using iPhone 6 Plus supporting normal peak performance, prerelease iOS 11.4, and prerelease iOS 12. Keyboard tested using Safari; Camera tested by swiping from the Lock screen. Performance varies based on specific configuration, content, battery health, usage, software versions, and other factors.

Some features may not be available for all countries or all areas, for more information visit: https://www.apple.com/ios/feature-availability and https://www.apple.com/ios/whats-new

For information on the security content of this update, please visit this website:

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