Xiaomi Mi Max 2: Complete Guide

The Xiaomi Mi Max 2, released in 2017, is still a popular device due to its huge screen and autonomy. However, over time, official software support is phased out and users are faced with the need to install more recent versions of Android or custom builds on their own. The process of flashing can scare newcomers, but when approached correctly, it becomes a routine procedure that returns the device to a second life.

Before you start taking action, you need to be clear about the risks and prepare the workplace. Firmware is an interference with the system partition of memory, and any error can lead to the failure of the gadget. In this article, we will discuss all the steps from unlocking the bootloader to installing the Global ROM or custom TWRP. Careful reading of the instructions minimizes the likelihood of problems.

It's important to understand that there are two main methods of installing software: Recovery mode and Fastboot mode. The first option is easier and safer for the average user who wants to upgrade or roll back to the previous version. The second method requires a connection to a PC and the use of special software, but gives full control over the device, allowing you to change the firmware region from Chinese to global.

⚠️ Note: All actions on flashing you perform at your own risk.The author of the article is not responsible for possible malfunctions in the work of your Xiaomi Mi Max 2.

Preparation of the device and necessary tools

The success of the operation depends on 90% of the quality of preparation. You will need the Xiaomi Mi Max 2 smartphone itself, which is serviceable. USB-cable (preferably original or certified, capable of transmitting data, not just charging) and a Windows computer. Also make sure that the battery charge of the device is at least 60% so that the process is not interrupted due to discharge at a critical moment.

You need to install the current ADB and Fastboot drivers on your computer. Without them, the system will not be able to interact correctly with the phone in engineering modes. There is a universal Minimal ADB and Fastboot package that contains all the necessary components. Once you install the drivers, check for them in the Device Manager by connecting the phone in debugging mode.

Make sure to back up all your important data. When you change your firmware type (like CN to Global) or unlock the bootloader, your device memory will be completely cleared. Keep your contacts, photos and documents in the Mi Cloud cloud or on your computer. Backup is the only guarantee that you won't lose valuable information forever.

Unlocking the Bootloader bootloader

To install global firmware on the Chinese version of the smartphone or to obtain superuser rights, you need to unlock Bootloader. This is a security mechanism that prohibits the launch of unofficial software. The unlocking process is officially supported by Xiaomi, but requires time and account binding.

The first step is to link your Mi Account to your device. Go to settings, select About Phone, and click on MIUI multiple times to activate the developer menu. Then go to Advanced Settings → For developers, and find Mi Unlock Status. Click Add Account and Device.

Once you've tied it, you'll download the Mi Unlock Tool to your computer, start the program, log in to your account, and put your phone into Fastboot mode (pressing both the volume and power buttons at the same time). Connect the device to your PC and press the "Unlock" button. The system will alert you to the risks and may ask you to wait 36 to 168 hours for security checks.

• 📱 Download the official utility Mi Unlock from the manufacturer's website.
• 🔒 Tie it up. SIM-map and Mi Account in the phone settings.
• ⏳ Observe the mandatory waiting timer (from 3 to 7 days).
• 💻 Unlock through PC in Fastboot mode.

Selection of firmware type: Global, China or Custom

One of the most important steps is choosing the right system image. There are several options for the Xiaomi Mi Max 2, each with its own advantages and disadvantages, and understanding the differences will help you avoid problems with localization and banking applications.

China ROM is a stock firmware designed for the domestic market of China. It does not have Google Play by default (although it can be installed), there is no Russian language and there are Chinese services. However, it often gets updates faster than others and contains less preinstalled garbage. Global ROM is an international version with a full set of languages, Google services and optimization for networks.

There are also Custom ROMs built by independent developers based on pure Android (AOSP). For the Mi Max 2, LineageOS or Pixel Experience builds are popular. They provide maximum performance and current versions of Android that are no longer officially released, but can have bugs in the camera or sensors.

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For everyday use in the CIS, the best choice is a stable Global ROM with the latest security patch.

Install firmware through Recovery (without PC)

The easiest way to upgrade or restore a system is to use a built-in recovery.This method does not require an unlocked bootloader if you are installing an official firmware in the same region. The firmware file should have a.zip extension and weigh about 2-3 GB.

Download the desired firmware archive and place it in the root of the smartphone's internal memory. Don't put the file in folders, use the main space. Next, go to the update menu: Settings → About Phone → MIUI Version. Click on the three dots in the upper right corner and select "Select firmware file."

Once you select the file, you'll start to check the integrity, and if the system gives you a "Can't verify update" error, it means you're trying to roll back to an older version or change the region without a license, which would require a method of clearing the data through the Recovery menu, and to do that, turn off the phone and press the power and volume buttons up until the logo appears.

• 📂 Copy the file. update.zip cellphone.
• ⚙️ Go to the update menu through the system settings.
• ✅ Confirm the installation and wait for the process to be completed.
• 🔄 The device will automatically restart with the new OS.

Critically, if you are changing region (e.g. from China to Global), the standard update will not work, you will need an unlocked booter and method through Fastboot, described below, or the use of special crawler scripts that may be unstable.

Firmware through Fastboot with a computer

Fastboot is the most reliable and versatile method, which allows you to completely clear the memory partitions and write the new system "clean." This requires you to download the firmware image with the.tgz extension (not to be confused with zip for recovery) and unpack it on your computer.

In the folder with the unpacked firmware, find the executable file. flash_all.bat (complete cleaning) or flash_all_except_storage.bat (Start your phone in Fastboot mode (power button) + Volume down, plug it into your PC and run the script. 5-10 minute.

During the firmware, the command line will display execution statuses. Don't turn off the cable or touch the device. If the process is stuck at some stage for more than 15 minutes, it may be that the drivers are installed incorrectly or the USB port is faulty. Try reconnecting the cable to another connector, preferably directly to the motherboard, bypassing the hubs.

⚠️ Attention: When using a team flash_all All data on the phone will be permanently deleted.

Installation of custom TWRP Recovery

For advanced users who want to install custom firmware or make full system backups, you need to replace the standard recavator with TWRP. This is a modified restore menu with touch control and advanced functionality. Installation is possible only on devices with an unlocked bootloader.

Download the twrp.img image file specially assembled for the Xiaomi Mi Max 2 (codename oxygen). Put it in the ADB tool folder. Open the command line in this folder and enter a command to check the connection:

adb devices

If the device is determined, put it in bootloader mode and enter the command to record the image:

fastboot flash recovery twrp.img

Immediately after a successful recording, don't let the phone boot into the system in the standard way. Press the volume button up and power to immediately hit the installed TWRP. If you just restart the phone, Xiaomi's stock recavator can overwrite the TWRP back.

• 📥 Download the current image file TWRP oxygen-model.
• 🔌 Connect your phone in Fastboot mode to your computer.
• 💻 Run the flash command through ADB-interface.
• 🔘 Immediately after the firmware, enter Recovery mode with buttons.

Possible mistakes and ways to solve them

There may be various errors in the firmware process. ERROR:6 in the Mi Flash Tool often indicates a driver or cable problem. Try reinstalling the Xiaomi USB Driver drivers and replacing the wire. Also make sure the path to the firmware folder does not contain Cyrillic characters or spaces.

If the phone is gone to Bootloop (permanent reboot), try doing Wipe Data/Factory Reset via the Recovery menu. In more difficult cases where the device is not responding to buttons, you may need to enter EDL (Emergency Download) mode. For the Mi Max 2, this often requires opening the back cover and closing contacts on the board, or using a special button combination when connecting the phone that is off.

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If the phone is stuck on the Mi logo after firmware, don't panic.The first turn on after resetting or changing the Android version can last up to 10-15 minutes.

If you have an error, "Anti-rollback check failed" means you are trying to install a version of Android below the one you installed earlier.