V12.5.3.0.RKHMIXM is a pilot (staged rollout) MIUI 12.5 update for the POCO F3 (Global, codename alioth), based on Android 11 and released on Sep 3, 2021. It brings the August 2021 Android security patch.
- Device POCO F3 (
alioth_global) - Region Global
- OS MIUI 12.5, Android 11
- Branch Pilot (staged rollout)
- Security patch 2021-08-01
- Build date Aug 23, 2021
- Fingerprint
Redmi/alioth_global/alioth:11/RKQ1.200826.002/V12.5.3.0.RKHMIXM:user/release-keys
Download V12.5.3.0.RKHMIXM
| Type | Size | MD5 | |
|---|---|---|---|
| Recovery ROM (.zip, built-in updater) | 3.1 GB | — | Download |
What’s New in V12.5.3.0.RKHMIXM
MIUI12.5 Enhanced
- Swift performance. More life between the charges.
- Focused algorithms: Our new algorithms will dynamically allocate system resources based on specific scenes, ensuring smooth experience on all models.
- Atomized memory: Ultra-fine memory management mechanism will make RAM usage more efficient.
- Liquid storage: New sensitive storage mechanisms will keep your system vibrant and responsive as time goes by.
Lock screen
- Fix: Using Face unlock and Fingerprint unlock simultaneously led to crashes in some cases
- Fix: Lock screen notifications disappeared after an ended call
Status bar, Notification shade
- Fix: Cleaner animations weren't displayed correctly
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 POCO F3 firmware page.
Other POCO F3 Global Versions
- Newer: OS1.0.5.0.TKHMIXM (Jan 26, 2026)
- All POCO F3 firmware for every region
Build data: official Xiaomi servers. Firmware list tracked by XiaomiFirmwareUpdater.