20.9.4 is a weekly (developer) MIUI weekly update for the Mi MIX 2S (China, codename polaris), based on Android 10 and released on Sep 4, 2020.
- Device Mi MIX 2S (
polaris) - Region China
- OS MIUI weekly, Android 10
- Branch Weekly (developer)
Download 20.9.4
| Type | Size | MD5 | |
|---|---|---|---|
| Recovery ROM (.zip, built-in updater) | 2.3 GB | — | Download |
What’s New in 20.9.4
Xiaomi hasn’t published release notes for this build. Updates like this usually contain bug fixes, stability improvements and, if listed above, a new security patch.
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
- Newer: V12.5.1.0.QDGCNXM (Jul 16, 2021)
- Older: 9.9.3 (Sep 4, 2019)
- All Mi MIX 2S firmware for every region
Build data: official Xiaomi servers. Firmware list tracked by XiaomiFirmwareUpdater.