How do I install V12.5.5.0.RJCCNXM on Redmi 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.RJCCNXM 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.RJCCNXM is the version shown. Check FirmwareMirror regularly for newer versions of Redmi 9 China firmware.

Download V12.5.5.0.RJCCNXM for Redmi 9 China

What's New

[System]Updated Android Security Patch to January 2022. Increased system security.

Android Version

11.0

File Size

2.73 GB

Release Date

Feb 09, 2022

Flash Method

Fastboot

Download ROM

Available

Download Now

File Size: 2.73 GB

Mirror Downloads (11)

Mirror 1 Mirror 2 Mirror 3 Mirror 4 Mirror 5 Mirror 6 Mirror 7 Mirror 8 Mirror 9 Mirror 10 Mirror 11

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

Verification & Details

MD5 Checksum:

54a2598d577d6dfc13306b3fbb94aa90

Package Name:

miui_LANCELOT_V12.5.5.0.RJCCNXM_54a2598d57_11.0.zip

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