V12.5.1.0.RFAMIXM is a stable MIUI 12.5 update for the Mi 9 (Global, codename cepheus), based on Android 11 and released on Jun 17, 2021. It brings the May 2021 Android security patch.
- Device Mi 9 (
cepheus_global) - Region Global
- OS MIUI 12.5, Android 11
- Branch Stable
- Security patch 2021-05-01
- Build date Jun 10, 2021
- Fingerprint
Xiaomi/cepheus/cepheus:11/RKQ1.200826.002/V12.5.1.0.RFAMIXM:user/release-keys
Download V12.5.1.0.RFAMIXM
| Type | Size | MD5 | |
|---|---|---|---|
| Recovery ROM (.zip, built-in updater) | 2.6 GB | — | Download |
| Fastboot ROM (.tgz, Mi Flash) | 3.2 GB | — | Download |
What’s New in V12.5.1.0.RFAMIXM
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.
- Updated Android Security Patch to May 2021. Increased system security.
- Stable MIUI based on Android 11
Notes
- 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 bring the typography in Notes to a new level.
- 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.
- All-new Notes.
Xiaomi Cloud
- New: Location info can be now reported automatically before the device is powered off
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 Global 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 9 firmware page.
Other Mi 9 Global Versions
- Older: 9.6.27 (Jun 28, 2019)
- All Mi 9 firmware for every region
Build data: official Xiaomi servers. Firmware list tracked by XiaomiFirmwareUpdater.