Many smartphone users dream of an ideal software environment: clean, fast and devoid of pre-installed “garbage” from manufacturers. This is exactly the ecosystem that the app offers Android One, guaranteeing timely updates and a reference user interface. However, not all devices come with this system out of the box, which forces enthusiasts to look for ways to install Android One on their gadget themselves.
The process of turning a regular Android smartphone into a device with the One interface is not a trivial task and requires a deep understanding of the mobile OS architecture. Unlike simply changing the launcher, a complete replacement of the firmware affects the system memory partition and requires unlocking the bootloader. Google Officially certifies only a limited number of models, so for most devices we will be talking about custom solutions that imitate the operation of Android One.
Before taking any action, you must clearly understand the difference between official certification and third-party assemblies. Official devices receive a guarantee of security and stability, while installing modified software yourself always carries risks. In this article, we will look at both ways in detail: from checking official compatibility to the complex flashing procedure via Fastboot.
Official device support and compatibility
The first and most important step is to check whether your device supports the Android One app at the hardware or software level. Certification takes place only with those manufacturers who have entered into an appropriate agreement with Google. The list of such devices is constantly changing, and what worked yesterday may be excluded from the app tomorrow.
⚠️ Attention: Manufacturers can unilaterally stop supporting Android One for certain models, transferring them to their own shells like MIUI or OneUI. Always check the current status of the device on the partner's official website before purchasing or upgrading.
If you own a smartphone that was originally sold as part of the Android One app (for example, some models from the Nokia, Xiaomi Mi A series or Motorola One), then the installation is reduced to a standard system update. All you have to do is go to the settings and check for updates. For other devices, the situation is more complicated: it is impossible to programmatically “stretch” the official Android One firmware onto uncertified hardware due to verification of signatures and drivers.
However, there are exceptions in the form of projects that are close to the standard. Some vendors release global versions of firmware without unnecessary add-ons, which are functionally almost identical to Android One. To understand whether there is a chance to get pure Android on your device, study the processor specifications and the presence of an unlockable bootloader.
- 📱 Devices with Qualcomm Snapdragon processors more often have support for custom communities.
- 🔒 Smartphones with a locked bootloader (for example, many Huawei or Honor models) are practically unusable modifications.
- 🌍 Global versions (Global ROM) are usually cleaner than their Chinese counterparts and closer to stock.
Preparation for installing custom firmware
If the official path is closed, the only option is to install custom firmware (Custom ROM), which visually and functionally copies Android One. This process requires careful preparation, since any mistake can lead to data loss or the smartphone turning into a “brick.” The first step is to make a complete backup all important data, photos and contacts.
Next, you should activate developer mode and enable USB debugging. This is done through a hidden menu in the device settings. Without this step, the computer will not be able to send the necessary commands to the smartphone. It is also critical to install ADB and Fastboot drivers on your personal computer to ensure stable communication between devices.
☑️ Preparing for flashing
Finding suitable firmware is a separate step that requires care. You need to find a project-based build or custom builds like those that replicate the Android One environment as closely as possible. You should download files only from trusted forums, such as XDA Developers, avoiding dubious sites. LineageOS or specialized assemblies like Pixel Experience, which reproduce the Android One environment as closely as possible. You should only download files from trusted forums, such as XDA Developers, and avoid dubious sites.
Unlocking the bootloader
Unlocking the bootloader is a fundamental step, without which the installation of any third-party software is impossible. Manufacturers block this mechanism to protect the device from malware, but for enthusiasts it is a major obstacle. The procedure varies greatly depending on the brand: it requires a wait of 7 days and a special application, while it requires obtaining an unlock code from the official website. It is important to understand that unlocking the bootloader almost always leads to a complete reset of the device to factory settings. All data will be destroyed for security reasons. After executing the command in Xiaomi requires a wait of 7 days and a special application, Motorola — obtaining an unlock code from the official website.
It is important to understand that unlocking the bootloader almost always results in a complete factory reset of the device. All data will be destroyed for security reasons. After executing the command in mode Fastboot mode, the smartphone will reboot and begin the process of clearing memory. This process may take several minutes and cannot be interrupted.
What is OEM unlocking?
This is an item in the “For Developers” menu that allows programmatic modification of system partitions. Without enabling this item, unlock commands via Fastboot will be rejected by the device.
After successful unlocking, a warning may appear on the boot screen stating that the software is not verified. This is normal for modified devices. Now your device is ready to receive write commands to the system partition, which opens the way for installing Recovery and new firmware.
Installing custom Recovery (TWRP)
The standard Android recovery menu has limited functionality and does not allow you to install unsigned firmware. Therefore, the next step is to install a custom recovery, the most popular of which is TWRP (Team Win Recovery Project). This tool allows you to create full system images, wipe partitions and install ZIP archives with firmware.
The installation process is usually performed through a computer using the command fastboot flash recovery twrp.img. After executing the command, you must immediately put the device into recovery mode by holding down the key combination (usually Volume Up + Power) so that standard Android does not overwrite the new recovery back to the old one. This is a critical point that beginners often miss.
| Fastboot command | Action | Error risk |
|---|---|---|
fastboot devices |
Checking connection with PC | Low |
fastboot flash recovery img |
Write recovery image | Medium |
fastboot reboot |
Reboot to system | Low |
fastboot oem unlock |
Unlock bootloader | High (data reset) |
Once in the TWRP menu, you will see a touch interface with the ability to select language and settings. Before installing the firmware, it is recommended to make a full backup of the current state (Nandroid Backup) to a memory card or computer. This will be your insurance: if the new firmware does not start, you can roll back in a couple of minutes.
Before flashing the firmware, be sure to format the Data section (Format Data) in the Wipe menu of the TWRP menu by entering the word "yes". This is necessary to remove encryption, otherwise the new Android will not be able to read the internal memory.
Firmware and configuration of Android One
Now comes the most crucial moment - the direct installation of the operating system. The previously downloaded ZIP archive with firmware (for example, Pixel Experience or LineageOS) must be copied to the smartphone’s internal memory or SD card. In the TWRP menu, select Install, find the firmware file and confirm installation with a swipe.
The recording process can take from 5 to 15 minutes depending on the memory speed and data volume. During installation, the log will display the stages of unpacking and writing the system, .boot and recovery partitions. After completion, a button Wipe Cache/Dalvikwill appear, which is highly recommended to prevent cache conflicts between the old and new systems.
⚠️ Attention: If after installing the firmware the smartphone is stuck on the logo (bootloop), do not panic. Go back to TWRP, perform a full reset (Advanced Wipe: Dalvik, Cache, System, Data) and try to reflash the device again.
After the first launch, you will see a welcome screen, almost identical to what happens on Google Pixel smartphones. You have to set the language, connect to Wi-Fi and sign in to your Google account. At this stage, the system may offer to install Google Apps (GApps), if they were not built into the firmware. For Android One to work properly, Google services are required.
Possible problems and solutions
Even if you strictly follow the instructions, unforeseen situations may arise. One of the most common problems is the camera not working or the Bluetooth module being unstable. This is due to the fact that the drivers (firmware) in custom firmware may differ from the stock ones. The solution often lies in flashing the latest image firmware before installing the system itself.
Another common problem is a signature verification error in TWRP. This means that the recovery does not trust the firmware file. In modern versions of TWRP, this check can be disabled in the settings or you can use signed firmware versions. It is also worth making sure that the downloaded file is not damaged during download.
- 📉 Rapid battery drain: often treated by calibrating or waiting for system optimization in the first days.
- 📶 Lack of network: check the compatibility of the firmware frequency bands (Bands) with your operator.
- 🔒 Decryption error: formatting of the Data section is required before installation.
The stability of custom firmware depends 90% on the quality of the drivers that the developer was able to adapt to a specific device model.
If the smartphone stops responding to button presses and does not turn on, it may have gone into mode EDL (Emergency Download Mode) or deep bootlap. In such cases, you may need to use specialized recovery software, such as Mi Flash Tool for Xiaomi or Odin for Samsung, to return the stock firmware and warranty.
FAQ: Frequently Asked Questions
Is it safe to install Android One through custom firmware?
Using banking applications may be difficult due to SafetyNet protection. However, there are workarounds (Magisk) that can hide the fact that the bootloader is unlocked. For normal use, it is safe if you trust the source of the firmware.
Will I lose the warranty after installation?
Yes, in most cases, unlocking the bootloader and modifying the software will void the official manufacturer's warranty. Some brands allow you to re-lock the bootloader, but traces of the intervention may remain in the logs.
Is it possible to update such a system over the air (OTA)?
Depends on the firmware developer. Some projects, such as Pixel Experience, have a built-in OTA update mechanism. In other cases, you will have to download the new version of the ZIP file and install it manually through TWRP.
What is the difference between Android One and Pixel Experience?
Android One is Google's official certification app for partners. Pixel Experience is a custom firmware created by enthusiasts that visually copies the interface and functions of Google Pixel smartphones, including exclusive applications.