How do I install V12.5.5.0.RFACNXM on Mi 9 China?

Download the ROM file, verify the MD5 checksum, unlock your bootloader, and use Mi Unlock Tool or Fastboot to flash the firmware. Ensure your device is fully charged before proceeding.

Is V12.5.5.0.RFACNXM 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.

What should I do before flashing this firmware?

1. Backup all your data, 2. Charge your device to at least 80%, 3. Verify the MD5 checksum, 4. Download from FirmwareMirror, 5. Follow official flashing instructions carefully.

Is this firmware the latest version?

Yes, V12.5.5.0.RFACNXM is the version shown. Check FirmwareMirror regularly for newer versions of Mi 9 China firmware.

Download V12.5.5.0.RFACNXM for Mi 9 China

What's New

[Other]Optimized system performanceImproved system security and stability

Android Version

11.0

File Size

2.64 GB

Release Date

Nov 09, 2021

Flash Method

Fastboot

Download ROM

Available

Download Now

File Size: 2.64 GB

Mirror Downloads (11)

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

Verification & Details

MD5 Checksum:

8ff260d2513d78da00f41bd31b85af68

Package Name:

miui_CEPHEUS_V12.5.5.0.RFACNXM_8ff260d251_11.0.zip

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