V12.5.1.0.QDGCNXM is a stable MIUI 12.5 update for the Mi MIX 2S (China, codename polaris), based on Android 10 and released on Jul 16, 2021. It brings the December 2020 Android security patch.
- Device Mi MIX 2S (
polaris) - Region China
- OS MIUI 12.5, Android 10
- Branch Stable
- Security patch 2020-12-01
- Build date Jul 7, 2021
- Fingerprint
Xiaomi/polaris/polaris:10/QKQ1.190828.002/V12.5.1.0.QDGCNXM:user/release-keys
Download V12.5.1.0.QDGCNXM
| Type | Size | MD5 | |
|---|---|---|---|
| Recovery ROM (.zip, built-in updater) | 2.2 GB | — | Download |
| Fastboot ROM (.tgz, Mi Flash) | 3.0 GB | — | Download |
What’s New in V12.5.1.0.QDGCNXM
Highlights
- MIUI 12.5. Yours alone.
System
- 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.
- New: Response to gestures is now instant.
- Optimization: MIUI became lighter, faster, and more durable.
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.
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.
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.
Privacy protection
- 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.
- 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.
- Optimization: An all-new privacy protection page.
IME
- New: Custom themes for keyboards.
- 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.
Browser
- New: Wallpaper customization in the lite mode.
- Optimization: Redesigned Incognito mode.
- Optimization: Pages load much faster now.
Official release notes published by Xiaomi for this build.
How to Install This Update
Download the Recovery ROM, move it to the internal storage and choose Settings → About phone → (tap the OS card) → three dots → Choose update package. This keeps your data, but only works for a China phone on an older version. For a clean install or a region change, flash the Fastboot ROM with Mi Flash (unlocked bootloader required). Step-by-step instructions are on the Mi MIX 2S firmware page.
Other Mi MIX 2S China Versions
- Older: 20.9.4 (Sep 4, 2020)
- All Mi MIX 2S firmware for every region
Build data: official Xiaomi servers. Firmware list tracked by XiaomiFirmwareUpdater.