Is OS1.0.4.0.ULACNXM 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, OS1.0.4.0.ULACNXM is the version shown. Check FirmwareMirror regularly for newer versions of Xiaomi 12S Ultra China firmware.

Download Xiaomi 12S Ultra China ROM - OS1.0.4.0.ULACNXM (Global)

Name: OS1.0.4.0.ULACNXM for Xiaomi 12S Ultra China
Availability: InStock
Author: Xiaomi

What's New

[System]Updated Android Security Patch to January 2024. Increased system security.<p>[Comprehensive refactoring]Xiaomi HyperOS comprehensive refactoring optimizes performance for individual devicesDynamic thread priority adjustment and dynamic task cycle evaluation allow for optimal performance and power efficiencyEnergy-efficient rendering framework for improved performance and smoother animationsIntegrated SOC enables smoother hardware resource allocation and dynamic prioritizing of computing pow...

Android Version

14.0

File Size

7.03 GB

Release Date

Feb 19, 2024

Flash Method

Fastboot

Download ROM

Available

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File Size: 7.03 GB

Mirror Downloads (10)

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10 mirror(s) available • Click any button to download

Verification & Details

MD5 Checksum:

a95c5dd4c02eba08cd7275fd56b66c15

Package Name:

thor_images_OS1.0.4.0.ULACNXM_20240119.0000.00_14.0_cn_a95c5dd4c0.tgz

How to Flash Fastboot on Xiaomi 12S Ultra China

Please follow these steps carefully to install the OS1.0.4.0.ULACNXM update safely. Ensure your device has at least 60% battery.

Ensure the bootloader of your Xiaomi 12S Ultra China is unlocked.
Download the official Mi Flash Tool and extract it on your PC.
Boot your device into Fastboot mode by holding the Volume Down + Power buttons simultaneously.
Connect the smartphone to your PC using a reliable USB cable.
Extract the downloaded OS1.0.4.0.ULACNXM firmware archive (.tgz file).
Open Mi Flash Tool, select the extracted firmware folder, and click 'Flash'.

Back to Xiaomi 12S Ultra China

Download Xiaomi 12S Ultra China Firmware (OS1.0.4.0.ULACNXM)