Is OS3.0.309.0.WPACNXM stable for daily use?

This is an official firmware release. All official releases from FirmwareMirror are stable and tested. Always backup your data before flashing any firmware.

Is this firmware the latest version?

Yes, OS3.0.309.0.WPACNXM is the version shown. Check FirmwareMirror regularly for newer versions of Xiaomi 17 Ultra China firmware.

Download Xiaomi 17 Ultra China ROM - OS3.0.309.0.WPACNXM (China)

Name: OS3.0.309.0.WPACNXM for Xiaomi 17 Ultra China
Availability: InStock
Author: Xiaomi

Android Version

16.0

File Size

10.2 GB

Release Date

Jul 23, 2026

Flash Method

Recovery

Download ROM

Available

Download Now

File Size: 10.2 GB

Verification & Details

MD5 Checksum:

e50c8b894faed4a61da07efc5bc2d338

How to Flash Recovery on Xiaomi 17 Ultra China

Please follow these steps carefully to install the OS3.0.309.0.WPACNXM update safely. Ensure your device has at least 60% battery.

Download the OS3.0.309.0.WPACNXM Recovery ROM (.zip file).
Transfer the file to the internal storage root directory of your Xiaomi 17 Ultra China.
Navigate to Settings > About Phone > System Update.
Tap the OS logo 10 times to enable advanced features.
Tap the top-right menu icon and select 'Choose update package'.
Select the downloaded zip file and wait for the automated installation to complete.

Back to Xiaomi 17 Ultra China

Download Xiaomi 17 Ultra China Firmware (OS3.0.309.0.WPACNXM)