How do I install V6.3.9.0.KXDCNBL on MI 3 / Mi 4 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 V6.3.9.0.KXDCNBL 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, V6.3.9.0.KXDCNBL is the version shown. Check FirmwareMirror regularly for newer versions of MI 3 / Mi 4 China firmware.

Download V6.3.9.0.KXDCNBL for MI 3 / Mi 4 China

What's New

[Other]Optimized system performanceImproved system security and stability

Android Version

12.0

File Size

376.9 MB

Release Date

Mar 27, 2015

Flash Method

Recovery

Download ROM

Available

Download Now

File Size: 0.37 GB

Mirror Downloads (5)

Mirror 1 Mirror 2 Mirror 3 Mirror 4 Mirror 5

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

Verification & Details

MD5 Checksum:

0d7c439bafe964d0812f79353ce63ed0

Package Name:

miui_MI3WMI4W_V6.3.9.0.KXDCNBL_0d7c439baf_4.4.zip

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