Redmi K40 receiving MIUI 12.5 update in China

Back in February, Redmi K40 debuted in China which was recently launched in India as Xiaomi Mi 11X. In both regions, the device launched with Android-11 based MIUI 12. Now, the company has started pushing MIUI 12.5 update to Redmi K40 users in China.

Redmi K40

MIUI 12.5 seems a small increment to MIUI 12, But actually, this brings important changes to the CPU performance, battery effeciency, and gestures. The update carries firmware version V12.5.2.0.RKHCNXM and requires you to download a big chunk of data, 3.8GB to be precise. 

The MIUI 12.5 brings a revamped system UI which reduced the CPU usage by up to 22% and lowers power consumption by up to 15%. Unlike the MIUI 12, gestures in MIUI 12.5 have their dedicated thread for a much faster response. Another important change is that a vast majority of system apps can now be uninstalled. 

If you’re a Redmi K40 user in China and have not received the MIUI 12.5 update yet, then manually check it by navigating to Settings >> About phone >> System update. For those who can’t wait, we have added a download link for the latest package that requires manual installation, which we don’t recommend. 


  • Redmi K40

Firmware version:

  • V12.5.2.0.RKHCNXM

Download link:



MIUI 12.5. Yours alone.

  • System
    • New: Response to gestures is now instant.
    • New: With 20 times more rendering power, there are now few limits to what you can see on your screen.
    • New: With custom device model adjustments, any phone becomes faster after the upgrade.
    • Optimization: MIUI became lighter, faster, and more durable.
  • System animations
    • New: A new animation framework renders movement more realistically.
    • New: New UI design is focused on visualization and making your interaction with the device more lifelike.
  • Haptic feedback
    • New: Haptic feedback brings a new dimension to familiar actions.
  • System sounds
    • New: Nature mix is a new exciting way of creating your own notification sound system.
    • New: Hundreds of system sounds that represent animals from all around the world.
    • New: Stereo system sounds.
  • Super wallpapers
    • New: Mount Siguniang super wallpaper.
  • Privacy protection
    • New: Now you can see what apps access your clipboard and control access.
    • New: Using approximate location adds up points to privacy protection.
    • New: You can now manage sensitive permissions and related app behavior independently.
    • New: The behavior of web pages is also tracked now, which helps you to block unwanted and malicious actions.
    • New: Now it’s up to you who and when can track your online behavior.
    • New: All apps now come with a security statement from GetApps.
    • New: Privacy risk scanner.
    • New: Control which apps access and delete items from your Gallery.
    • New: A comprehensive overview of all sensitive permissions.
    • New: You’ll be notified whenever high-risk permissions are used and will be able to block the corresponding actions.
    • Optimization: An all-new privacy protection page.
  • Notes
    • New: Compose mind maps with complex structures.
    • New: New tools for doodling and sketching.
    • New: Press and hold a sketch to adjust the strokes automatically.
    • New: A gesture shortcut now allows you to create notes, tasks, and excerpts anywhere.
    • New: Excerpts save text, URLs, and images to Notes in a few simple taps.
    • New: Dynamic layouts make bring the typography in Notes to a new level.
    • All-new Notes.
  • Floating windows
    • New: Instant messengers now support floating windows.
    • New: Floating windows can be quickly replaced with fullscreen versions of the apps.
    • New: App flashcards Show key info when apps are displayed as floating windows.
    • *Learn more about new features in “Special features”.
  • Home screen
    • New: “Ripples” animation for downloading apps.
    • New: “Burst” animation for uninstalling apps.
    • New: New design for app folders.
    • New: A vertical layout for Recents.
  • Xiaomi Cloud
    • New: Convert images to PDF.
    • New: Password manager allows you to store passwords in the cloud.
    • New: You can share device location with other people in your family sharing group.
    • New: Location information can be recorded automatically before the device powers off.
  • Mi Carrier Services
    • New: You can manage multiple SIM cards now.
  • IME
    • New: A more convenient way to move a cursor using the scrollbar.
    • New: Function buttons support switching between languages and keyboards.
    • New: You can press and hold the function buttons to access more features.
    • New: Custom themes for keyboards.
  • Themes
    • New: Font weight adjustment options for third party fonts.
    • Optimization: Personalization features for system wallpapers, animations, and sounds.
  • Browser
    • New: Wallpaper customization in the lite mode.
    • Optimization: Redesigned Incognito mode.
    • Optimization: Pages load much faster now.


Vicky Kumar
Vicky Kumar
Vicky Kumar is a close follower of tech especially when it comes to smartphone. He is passionate to write about the new updates in technology. When he is not working, you'll find him watching cricket highlights or surfing the web.

Leave a Comment