Is V12.5.12.0.RKMCNXM 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, V12.5.12.0.RKMCNXM is the version shown. Check FirmwareMirror regularly for newer versions of MIX 4 China firmware.

Download MIX 4 China ROM - V12.5.12.0.RKMCNXM (Global)

What's New

[System]Optimization: Updated Android Security Patch to August 2021. Increased system security.

Android Version

11.0

File Size

4.26 GB

Release Date

Oct 27, 2021

Flash Method

Fastboot

Download ROM

Available

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File Size: 4.26 GB

Mirror Downloads (11)

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

Verification & Details

MD5 Checksum:

dc201b3eedeeec273f3e7a087a390b72

Package Name:

miui_ODIN_V12.5.12.0.RKMCNXM_dc201b3eed_11.0.zip

How to Flash Fastboot on MIX 4 China

Please follow these steps carefully to install the V12.5.12.0.RKMCNXM update safely. Ensure your device has at least 60% battery.

Ensure the bootloader of your MIX 4 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 V12.5.12.0.RKMCNXM firmware archive (.tgz file).
Open Mi Flash Tool, select the extracted firmware folder, and click 'Flash'.

Back to MIX 4 China

Download MIX 4 China Firmware (V12.5.12.0.RKMCNXM)