Owners smartphones Xiaomi often encounter an intrusive MIUI or HyperOS shell, which is overloaded with advertising and unnecessary services. The desire for smooth operation and a concise interface pushes enthusiasts to search for solutions. Installing a stock system is a radical but effective way to turn a budget device into a premium device in terms of software quality.
The process of replacing proprietary firmware with clean Android (Custom ROM) requires certain technical training. You don't need to be a professional programmer, but attention to detail is key here. We will analyze the stages from unlocking to final setup in order to minimize risks.
You should immediately indicate that this procedure will lead to the complete removal of all data from the device. Unlocking the bootloader automatically voids the manufacturer's official warranty. If you are ready for such consequences for the sake of the freedom of the operating system, then we will proceed to a detailed study of the process.
Selecting suitable firmware and preparing tools
The first step is to select a specific version of the operating system. The developer community offers many options, among which Pixel Experience, LineageOS and ArrowOS are the most popular. Each build has its own characteristics: some closely copy the Google Pixel interface, others provide advanced customization options.
You need to find a stable version (Stable), not a nightly build (Nightly), if you plan to use the phone for everyday tasks. Bugs in beta versions can lead to unstable operation of communication modules or rapid battery drain. XDA Developers Repository remains the main source of verified files for specific models.
In addition to the firmware file, you will need a set of utilities for your computer. The standard package includes ADB and Fastboot drivers, as well as a specialized Recovery environment. Without the right set of tools, connecting your smartphone to a PC in download mode will be impossible.
Check the compatibility of the selected image with your processor model and device release date. An attempt to install firmware from Redmi Note 10 to Redmi Note 11 will turn the gadget into a “brick”, even if the model names are similar.
- 📂 Download the archive with firmware and drivers to your computer.
- 🔋 Charge your smartphone to at least 70-80% before starting work.
- 💾 Make a backup copy of all important contacts and photos to the cloud.
- 🔌 Prepare a high-quality USB cable, preferably an original one.
Use the USB 2.0 port on the computer’s motherboard, not the front panel of the case. The front ports often produce unstable voltage, which can interrupt the firmware process at the most inopportune moment.
Unlocking the Bootloader
The company Xiaomi deliberately blocks the ability to write third-party code to the device's memory. Removal of this protection requires official permission from the manufacturer. The process begins by linking your Mi Account to the device in the appropriate settings menu.
After linking, you must apply for unlocking through the official utility Mi Unlock Tool. The system will not issue permission instantly: it usually requires a wait of 7 to 15 days. This time is given to the user to think so that he does not commit impulsive actions.
When the waiting period expires, switch the phone to Fastboot mode by simultaneously pressing the volume down and power buttons. Connect the device to your computer and run the unlock app. If the account matches the one on the phone and the waiting period has passed, the bootloader will be unlocked.
⚠️ Attention: After unlocking the bootloader, the device will automatically perform a full data reset (Wipe Data). This is a security measure, so saving information on external media is mandatory.
Successful completion of the stage is confirmed by the appearance of an open lock icon when the phone is turned on. Now the device memory is open for recording any images, including custom Recovery and the firmware itself.
☑️ Ready to unlock
Installing custom Recovery TWRP
The standard Xiaomi recovery menu has limited functionality and does not allow you to install unsigned files. For full-fledged work, we will need TWRP Recovery (Team Win Recovery Project). This environment allows you to make full backups, clean up partitions and install ZIP archives.
Download the image file .img, designed strictly for your processor model and device. The installation command looks like this on the computer command line:
fastboot flash recovery twrp_image_name.imgImportant nuance: immediately after entering the command, do not allow the phone to boot into the normal system. If you do this, the stock Recovery will overwrite the installed TWRP. You need to hold down the button combination to enter recovery mode immediately after the firmware is completed.
In the TWRP menu, first of all, swipe to Allow Modifications. This will fix the installation of the custom environment. Next, it is recommended to go to the Wipe section and select Format Data by entering the word yes to completely remove encryption.
Why is data formatting necessary?
Modern versions of Android use file system encryption by default. Old Recovery or new firmware will not be able to read the data without the decryption key, which can only be reset by full formatting.
The process of installing firmware and Google services
Now that the environment is prepared, you can begin installing the operating system itself. Copy the previously downloaded ZIP archive with the firmware to the phone’s internal memory or SD card. In the TWRP main menu, select Install and specify the path to the file.
Before installation, it is advisable to clear the Cache, Dalvik and System partitions to avoid file conflicts. However, you do not need to touch the Data section if you have already completed Format Data in the previous step. Start the installation by swiping to the right and wait for the process to complete.
Many custom firmwares already contain built-in Google Apps (GApps). If you downloaded the version without services (Vanilla), you need to install the GApps package immediately after installing the firmware, without rebooting the phone. Otherwise, you will not have access to the Play Market and account synchronization.
| Firmware type | Availability of GApps | Archive size | Recommendation |
|---|---|---|---|
| Full / Official | Built-in | 1.5 - 2.5 GB | For beginners |
| Vanilla / Mini | Absent | 500 - 800 MB | For experienced |
| Nightly | Depends on the assembly | Miscellaneous | For testing |
After installing both components (system and services), select the Reboot System option. The first launch may take from 5 to 15 minutes, as the system optimizes applications and creates a cache.
Initial setup and optimization
After successful loading, you will see a welcome screen familiar to Google Pixel owners. Set up your language, Wi-Fi connection, and sign in to your Google account. The system will offer to restore data from a backup if you previously made a backup in the Google cloud.
Stock Android works differently than MIUI. There is no built-in screen recorder or powerful task manager as standard. You will have to install the necessary utilities yourself from Play Market. This makes the system cleaner, but requires more action from the user.
Pay attention to the navigation gesture settings. In pure Android they work more smoothly and intuitively than in many shells. It is also worth going to the “For Developers” section and checking the scale of animations by setting the value 0.5x to visually speed up the interface.
Some models may have problems with VoLTE or Wi-Fi Calling on custom firmware. This depends on the support of the specific modem by the assembly developer. If the connection quality has dropped, you may have to roll back to stock or look for a different version of the software. Xiaomi may have problems with VoLTE or Wi-Fi Calling on custom firmware. This depends on the support of the specific modem by the assembly developer. If the connection quality has dropped, you may have to roll back to stock or look for a different software version.
⚠️ Attention: Functions that depend on hardware encryption keys (for example, NFC contactless payment via Google Pay) may not work on an unlocked bootloader. Google security services detect a violation of system integrity.
Pure Android consumes less RAM when idle, which allows more applications to remain active in the background without rebooting.
Possible problems and ways to solve them
Specific errors may occur during operation. For example, the camera may shoot worse than on stock firmware due to the lack of proprietary image processing algorithms. The solution is often to install GCam (Google Camera) with a suitable config.
If your phone is stuck on the logo when booting (Bootloop), don't panic. Go back to Recovery mode and try clearing the cache (Wipe Cache/Dalvik). If this does not help, you will have to reflash the device again by downloading a fresh firmware image.
Problems with autofocus or proximity sensor are often solved by updating the firmware section (modem, bluetooth). Some TWRP builds have a separate item for flashing these components, which should be included with the main firmware.
Rapid battery drain in the first days is normal. The system indexes files and trains adaptive brightness algorithms. Let the phone work for a couple of days in normal mode before drawing conclusions about battery life.
- 📷 Install Google Camera portrait to improve photo quality.
- 🔋 Let the battery calibrate for 2-3 charge cycles.
- 🛡️ Use Magisk to hide root access from banking applications.
- 🔄 Regularly check for security updates in the system settings.
Is it safe to install pure Android on your main phone?
It depends on your willingness to solve technical problems. For a basic device that needs to work out of the box without any glitches, this is risky. It is better to use a second device or be sure of the stability of a particular assembly.
Is it possible to return the factory MIUI firmware back?
Yes, it is possible. You will need to download the official Fastboot firmware for your model and flash it through your computer using the Mi Flash utility in Clean All mode.
Will the warranty be void after unlocking the bootloader?
Xiaomi officially states that unlocking will void the software warranty. In the event of a hardware failure, service centers may refuse to repair, citing interference with the software.
Do banking applications work on custom firmware?
By default, no, since the bootloader status changes to unlocked. However, using the Magisk Hide utility and security modules, you can bypass the verification and force applications to work correctly.
Do you need Root access to install pure Android?
No, root access is not a prerequisite. You can use the system in completely stock mode without superuser rights, which is even safer for everyday use.