How to install HarmonyOS on Xiaomi: compatibility, risks and step-by-step guide

Huawei’s HarmonyOS operating system is gaining popularity every year thanks to optimized performance, unique design and deep integration with the brand ecosystem. Xiaomi smartphone owners often wonder whether it is possible to install this OS on Redmi, POCO or Mi devices, replacing the standard MIUI? In theory, this is possible, but the process is associated with technical nuances, the risk of “filling” the device and loss of warranty.

In this guide, we will look at which Xiaomi models support unofficial HarmonyOS ports, what tools will be required for installation, and provide a step-by-step guide based on current firmware versions for 2026. It is important to understand that there is no official support from Huawei or Xiaomi for such a procedure - you perform all manipulations at your own risk.

HarmonyOS Compatible with Xiaomi Devices

Before you start installing, make sure your Xiaomi model is supported by the development community.To date, full-fledged HarmonyOS ports exist for a limited number of devices, mainly based on Qualcomm Snapdragon processors (600, 700, 800 series).

• 📱 Xiaomi Mi 9 (cepheus) – stable port with support for basic features
• 📱 Redmi K20 Pro (raphael) – a popular model for experiments
• 📱 POCO F1 (beryllium – requires additional drivers for the camera module
• 📱 Xiaomi Mi 10 (umi) – partial support, possible bugs with sensors
• 📱 Redmi Note 7 Pro (violeta) - Experimental port, not all features work

To check your device’s compatibility, we recommend you visit topic forums such as XDA Developers or 4PDA where you publish current builds. Please note that even if your model is on the list, not all HarmonyOS features will work correctly.

• 📷 Camera module (incorrect color reproduction, absence) HDR)
• 🔋 Power management (accelerated battery discharge)
• 📶 Communication modules (problems with 5G VoLTE)
• 🎮 Performance in games (support) GPU beta-level)

Preparation for installation: what to do in advance

Installing HarmonyOS on Xiaomi is a multi-faceted process that requires prior preparation. First, create a complete backup of data, as all files on the device will be erased. This will be suitable for tools like TWRP Backup or Mi Cloud (if it is still available on your model).

• 🔌 Charged smartphone (at least 70% of the battery)
• 💻 Windows computer 10/11 Linux (for fastboot commands)
• 🔧 Cable USB Type-C (original, undamaged)
• 📁 HarmonyOS firmware for your model (.zip or.img format)
• 🛠️ Utilities: ADB & Fastboot, Mi Unlock Tool (if you need to unlock the bootloader)

Pay special attention to unlocking the bootloader. On most Xiaomi devices, it is locked by default, and you will need to unlock it:

1. Link your Mi Account to your device (Settings → Xiaomi Account).
2. Apply for unlocking via Xiaomi’s official website (up to 72 hours may be required).
3. Use the Mi Unlock Tool in fastboot mode.

Make a data backup|Charge the phone before 70%+|Download HarmonyOS firmware for your model|Install ADB/Fastboot PC-only|Unlock the bootloader (if necessary)|Disable antivirus (can block utilities)-->

⚠️ Attention: Unlocking the bootloader resets all data on the device, including internal memory.If you use Xiaomi with operator-related links (for example, models for the device). MTS Beeline, unlocking can disrupt the work SIM-map.

Step-by-step: install HarmonyOS on Xiaomi

Once all the preparations are complete, you can start the installation. Below is a universal algorithm that is relevant to most supported models. Deviations from the instructions can lead to the device being inoperable!

Step 1: Install a custom recaveri (TWRP)

To install HarmonyOS, you will need an alternative recavator – TWRP. Download the current version for your model from the official website (or a trusted source on 4PDA).

1. Connect your smartphone to your PC in fastboot mode (clip Volume down + Power when the phone is off).
2. Open the command line in the folder with fastboot and execute: fastboot flash recovery twrp-3.7.0_9-0-raphael.img Replace raphael with the code name of your model).
3. After rebooting to TWRP, run Wipe → Format Data (this will delete all data!).

Step 2: HarmonyOS firmware

The downloaded firmware file (.zip) must be transferred to the smartphone (via MTP to TWRP or using ADB Sideload).

1. V TWRP Choose Install → Select Storage → MicroSD/USB-OTG (if the firmware is on the memory card).
2. Specify the path to the firmware file and confirm the installation by swipe.
3. Wait until the process is completed (it can take 10-20 minutes).
4. Run the Wipe. → Dalvik/Cache and reboot the device.

Step 3: Initial setting

After you successfully download HarmonyOS, you will have to go through the initial setup, and here you can find it difficult:

• 🌐 Interface language: Chinese can be the default – change the settings to English or Russian (if available).
• 🔑 Huawei account: The system will require authorization through Huawei ID. If you do not have it, create it on the official website.
• 📱 Google services: Most ports do not have them. You will need to manually stitch GApps (if there is a compatible version) to install them).

⚠️ Warning: Some HarmonyOS builds block installation APK-To unlock this feature, go to Settings → Security → Additionally. → Install from unknown sources and enable the option for the browser or file manager you are using.

Common Problems and Their Solutions

Even with the successful installation of HarmonyOS on Xiaomi, users are faced with bugs. Below is a table of the most common problems and ways to fix them:

If none of these methods worked, consider returning to MIUI. To do so, download the stock firmware for your model from the Xiaomi Firmware Updater site and run it through the Mi Flash Tool in clean all mode.

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Before returning to MIUI, save the EFS folder (contains IMEI and modem data) via TWRP. This will help restore communication if the network disappears after the firmware.

HarmonyOS vs MIUI Comparison: Which Is Best for Xiaomi?

Before deciding to install HarmonyOS, it is worth weighing the pros and cons of this OS compared to the native MIUI. Below are the key differences:

HarmonyOS is for enthusiasts who care about speed and custom interfaces, but MIUI remains a more stable choice for everyday use, especially if you depend on Google services or banking applications.

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Installing HarmonyOS on Xiaomi is only justified for experimentation or if you are willing to put up with the lack of key features. For basic use, it is better to stay on MIUI or consider alternatives like LineageOS.

HarmonyOS Alternatives for Xiaomi

If HarmonyOS is not suitable due to incompatibility or lack of necessary features, consider other custom firmware:

• 🔄 LineageOS – pure Android without unnecessary bells and whistles, stable operation on most Xiaomi devices.
• 📱 Pixel Experience – firmware with Google Pixel interface, including all Google services.
• ⚡ ArrowOS – Balance between performance and functionality, regular updates.
• 🛡️ Havoc-OS – flexible interface setting, suitable for experienced users.

Each of these firmware has its own features, but they all lack the main disadvantage of HarmonyOS — compatibility issues with Google applications. For example, Pixel Experience provides full support for Google Play, GMS and banking applications, which is critical for many users.

To choose firmware, we recommend to study the reviews on the forums and pay attention to:

• 🔋 Stability of battery operation;
• 📷 Camera support (especially for multi-module models);
• 📶 Mobile network and Wi-Fi;
• 🔒 Data encryption (important for security).

FAQ: Frequent questions about installing HarmonyOS on Xiaomi