MIUI BetaWeeklyChina

Mi MIX 3 MIUI Beta 20.9.4

Q: Which Android version does 20.9.4 use?

This firmware is based on Android 10.0 .

Q: Will installing 20.9.4 erase my data?

Installing the Recovery package through the updater app keeps your apps and data. Flashing the Fastboot package with “clean all” wipes the phone — back up first.

Weekly firmware for the China Mi MIX 3 (perseus), released September 4, 2020.

Download 20.9.4

Recovery ROM (OTA .zip) · 2.5 GB Install from the phone’s updater app — keeps your data.

MD5: 9b9a07c6112f3d42aa7d566b59a81b9b

Download

This is a Weekly build. It may contain bugs and is meant for testers — wait for the Stable release if you depend on your phone daily.

Files are served from Xiaomi’s official servers. Compare the MD5 checksum after downloading to make sure the file is complete and untouched.

Firmware details

Device: Mi MIX 3
Codename: perseus
Region: China
Version: 20.9.4
OS: MIUI Beta
Android: 10.0
Branch: Weekly
Released: Sep 4, 2020
Package: Recovery 2.5 GB

How to install 20.9.4

Recovery ROM (recommended, keeps data)

Back up your important data and charge the phone to at least 50%.
Download the Recovery ROM above on your Mi MIX 3.
Open Settings → About phone and tap the MIUI version card.
Tap the ⋮ menu → Choose update package and select the downloaded .zip file.
Wait for verification, then tap Reboot now. The update takes 10–20 minutes.

Other Mi MIX 3 (China) builds

Device page →

Device	Version	Android	Branch	Released
Mi MIX 3China · `perseus`	V12.5.1.0.QEECNXM MIUI 12.5Stable	10.0	Stable	Jul 15, 2021
Mi MIX 3China · `perseus`	9.9.3 MIUI BetaWeekly	9.0	Weekly	Sep 4, 2019

Mi MIX 3 firmware for other regions

Frequently asked questions

Is 20.9.4 an official Mi MIX 3 update?

Yes. 20.9.4 is an official Weekly MIUI Beta build for the Mi MIX 3 (China), released by Xiaomi on September 4, 2020. The download links point directly to Xiaomi’s update servers.

Which Android version does 20.9.4 use?

This firmware is based on Android 10.0.

Will installing 20.9.4 erase my data?

Installing the Recovery package through the updater app keeps your apps and data. Flashing the Fastboot package with “clean all” wipes the phone — back up first.

Can I install this on another region’s device?

Only install firmware that matches your device’s region (China) and codename (perseus). Cross-region flashing requires an unlocked bootloader and can cause problems.