Xiaomi Mi Mix 3 (Codename: Perseus) in October 2018. The phone came out of the box with Android 9.0 Pie. If you’re a Custom ROM lover and want to flash a Custom Firmware on your Xiaomi Mi Mix 3 (Codenamed: Perseus), then this guide is for you. Now, you can download and install POSP ROM on Xiaomi Mi Mix 3 based on Android 10 Q from here. We have also shared the firmware details, download links, requirements, and a full installation guide as well.
Thanks to the Team of Potato Project for developing this ROM compatible with Xiaomi Mi Mix 3. According to the XDA member, this POSP ROM for Xiaomi Mi Mix 3 is an initial Android 10 Q build. In order to install the Custom ROM on your Android handset, the device bootloader must be unlocked at first and should have installed the latest TWRP Recovery as well.
Xiaomi Mi Mix 3 features a 6.39 inches Super AMOLED display with a screen resolution of 1080 x 2340 pixels. The display is protected by Corning Gorilla Glass. The device is powered by Qualcomm SDM845 Snapdragon 845 (10 nm) processor under Adreno 630 GPU. The handset packs 128GB/256/512GB variant with 6/8/10GB of RAM. Xiaomi Mi Mix 3 sports a Dual rear camera with 12MP + 12MP camera and Dual Selfie camera with 24MP + 2MP depth camera. The smartphone is running on Android 9.0 Pie under MIUI 10 software package and backed by 3200 mAh battery. It has a fingerprint reader at the back.
Now, let’s take a look at the overview of POSP (Potato Open Sauce Project) along with its features.
Table of Contents
What is the POSP (Potato Open Sauce Project)?
Potato Open Sauce Project (POSP) is a buttery-smooth Android custom firmware (aftermarket) that is basically based on AOSP (Android Open Source Project). The POSP developers have handpicked the best features around the Android OS and have added their own sauce to it. In a simple way, this ROM aims to deliver some unique features to experience a better Android taste.
What’s on Android 10?
Android 10 is the latest and 10th generation of Android OS which was announced by Google a couple of months ago officially. The new Android version brings new system UI, new gestures, improved privacy & location control, system-wide dark mode, improved lock screen, enhanced app permissions, etc. It also features the foldable display support, security enhancements, focus mode, family link, live caption, and more.
The Android 10 (aka Android Q) also features built-in call screening, multi-camera API support, smart reply, chat bubble, 5G support, improved battery life, 65 new emojis, direct audio streaming support to hearing aid devices, etc.
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- How to Install TWRP Recovery on Mi Mix 3 and Root using Magisk/SuperSU
- Common Xiaomi Mi Mix 3 Problems and Fixes – Wi-Fi, Bluetooth, Camera, SIM, and More
- Download and Install Lineage OS 17.1 for Xiaomi Mi Mix 3 based on Android 10 Q
Steps to Install POSP ROM on Xiaomi Mi Mix 3 (Perseus)
Follow this guide to download all the required files, tools, and drivers along with requirements to get things ready before flashing the firmware.
- Supported: For the Xiaomi Mi Mix 3 model only (Perseus).
- Charging: Maintain the battery charge more than 60% at least.
- Requires: A Windows PC/Laptop and a USB cable.
- USB Drivers: Download the latest Xiaomi USB Drivers on your PC.
- Unlock Bootloader: You will need to Unlock Bootloader on Xiaomi Mi Mix 3.
- TWRP Recovery: Install TWRP Recovery on your Xiaomi Mi Mix 3.
- Backup using TWRP: Create and Restore Nandroid Backup using TWRP.
Instructions to Install
- First, you have to boot into TWRP Recovery interface.
- Then Decrypt and Re-Encrypt Data Partition on Xiaomi Mi Mix 3 (if required).
- Make sure to take a complete backup of your ROM and internal data via TWRP Recovery.
- Next, you will need to Wipe System Data using TWRP Recovery.
- Once done, tap on the Install button and search for the downloaded POSP ROM zip file. [Guide to install Custom ROM using TWRP Recovery]
- Swipe to confirm flashing the firmware.
- Wait for a few minutes to complete the flashing process.
- Then you will need to flash the Android 10 GApps file from the TWRP main menu > go to Install > select downloaded GApps zip file and swipe to flash.
- After flashing both the firmware and Gapps package, you can reboot your Xiaomi Mi Mix 3 to the system.
- It will take some time to boot for the first time after installing a Custom Firmware on your device. Have some patience.
- Now, your device will boot into a new system. Enjoy!
- Additionally, you can install root on your Xiaomi Mi Mix 3 via SuperSU or via Magisk as well if you want.
We hope that this guide is useful to you and you’ve successfully installed the POSP Custom ROM (Android 10) on your Xiaomi Mi Mix 3 (Perseus) device. For any queries, let us know in the comments below.