Xiaomi Mi Mix 3 5G (codenamed andromeda) is still waiting for the MIUI 11 update along with the Android 10 base. As per the new update, the company started upgrading the device to October 2019 security patch. The update is now live with build number V10.3.20.0.PEMMIXM and based on Android 9.0 Pie. If you’re using the Mi Mix 3 5G Global variant and want to install the update, you can follow this full guide to install MIUI 10.3.20.0 Global Stable ROM. There is no major changes to the update apart from security patch integration.

As we said, this update is now live for users around the globe. If you haven’t received the OTA update on your Mi Mix 3 5G (andromeda), then you can manually install the MIUI 10.3.20.0 Global Stable ROM on Xiaomi Mi Mix 3 5G by following this guide. But before flashing the device via recovery mode, I suggest you check the OTA update on your device.

Check for OTA Manually

Xiaomi is always very quick in upgrading their devices to the latest security patch in time. If you have not received the software version V10.3.20.0.PEMMIXM on your Mi Mix 3 5G, then make sure to follow the below simple steps to check the new OTA on your phone.

  • Go to Settings menu > tap on About Phone > tap on Software Update.
  • If the latest V10.3.20.0.PEMMIXM update is available on your Mi Mix 3 5G device, then simply download and install it.

Whereas, if the update isn’t arriving on your device, you can manually install the firmware update by following the guide below.

Downloads and Changelog:

Steps to Install MIUI 10.3.20.0 Global Stable ROM for Mi Mix 3 5G (andromeda)

To install the update manually, make sure to check out the pre-requirements and downloads before flashing.

  • Recovery ROM | Fastboot ROM

  • Control center

  • Optimization: Control center layout in landscape mode

  • System

  • Updated Android Security Patch to December 2020. Increased system security

  • Optimization: Control center layout in landscape mode

  • Updated Android Security Patch to December 2020. Increased system security

  • Highlights

  • MIUI 12. Yours alone.

  • System visuals

  • Brand new visual design works for all types of content and languages.

  • Magazine-level layouts bring important things into the spotlight and make content structure clear.

  • Control center

  • New: Swipe down from the upper left corner to open Notification shade and from the upper right corner to open Control center

  • New: When Notification shade is open, swipe down from the upper right corner to open Control center

  • Casting

  • New: You can hide private items while casting and minimize the window to multitask.

  • New: You can hide private items while casting and minimize the window to multitask.

  • System

  • Updated Android Security Patch to September 2020. Increased system security.

  • Home screen

  • New: App drawer allows you to keep your Home screen neat and categorizes apps so you can find them faster.

  • Weather

  • New: New animations bring the weather from outside directly to your screen.

  • Notes

  • New: New dynamic backgrounds look gorgeous!

  • New: Tasks are completed with a satisfying animation now.

  • New: Checklists of subtasks make managing your agenda much simpler.

  • New: You can create folders with notes now.

  • Battery usage

  • New: Multiple optimizations for Battery saver

  • Security

  • New: New animations feel natural and refreshing.

  • New: Binging your favorite shows will be more convenient with our new video toolbox

  • MIUI 12. Yours alone.

  • Brand new visual design works for all types of content and languages.

  • Magazine-level layouts bring important things into the spotlight and make content structure clear.

  • New: Swipe down from the upper left corner to open Notification shade and from the upper right corner to open Control center

  • New: When Notification shade is open, swipe down from the upper right corner to open Control center

  • New: You can hide private items while casting and minimize the window to multitask.

  • New: You can hide private items while casting and minimize the window to multitask.

  • Updated Android Security Patch to September 2020. Increased system security.

  • New: App drawer allows you to keep your Home screen neat and categorizes apps so you can find them faster.

  • New: New animations bring the weather from outside directly to your screen.

  • New: New dynamic backgrounds look gorgeous!

  • New: Tasks are completed with a satisfying animation now.

  • New: Checklists of subtasks make managing your agenda much simpler.

  • New: You can create folders with notes now.

  • New: Multiple optimizations for Battery saver

  • New: New animations feel natural and refreshing.

  • New: Binging your favorite shows will be more convenient with our new video toolbox

  • Updated Android Security Patch to October 2019. Increased system security

Pre-Requirements:

  • This MIUI 10.3.20.0 Global Stable ROM file is only supported for the Xiaomi Mi Mix 3 5G.
  • Try to fully charge your device before installing the firmware.
  • We will recommend you to take a complete backup of device data without root.
  • A PC or Laptop and a USB cable are required.

Instructions to install

After following all the pre-requirements and downloads properly, now you can proceed to the guide in order to install MIUI 10.3.20.0 Global Stable ROM update on your Mi Mix 3 5G via Recovery or Fastboot method manually.

Download Required files

  • Xiaomi USB Drivers – Download and Install it on your PC or Laptop.
  • Xiaomi Mi Flash tool – Download and Install it on your computer as well. (for Fastboot Method)
  • Download MIUI 10.3.20.0.PEMMIXM – Recovery ROM | OTA ROM

Warning!

You can also check out the full-depth tutorial video from below:

That’s it, guys. We hope you have found this guide useful and successfully updated the MIUI 10.3.20.0 Global Stable ROM on your Mi Mix 3 5G (andromeda) device. For any queries, feel free to ask in the comments below.