How to Upgrade Xiaomi Mi Max 3: All Ways to Firmware in 2026

Introduction: Why Update the Firmware on Xiaomi Mi Max 3

Xiaomi Mi Max 3, released in 2018, is still a popular smartphone among users who appreciate a large screen and a long-lasting battery. MIUI Android owners of the device are faced with the question: how to update the firmware, so as not to lose functionality and not turn the phone into a “brick».

Updates bring not only new features, but also fix security vulnerabilities, optimize performance and support for modern applications. MIUI 10 on MIUI 12/14 It adds dark theme mode, improved gesture control, and virus protection, but it's important to remember that a wrong update can lead to loss of life. IMEI, Mi Mi Mi Mi Mi Mi Mistake or Mi Mistake.

In this article, we will discuss all the current ways to update the Mi Max 3 (codenamed nitrogen), including official and alternative methods, as well as how to avoid typical errors. OTA-Update – don’t be in a hurry to get upset: there are solutions for manual firmware.

1. Update Preparation: What to Do Before Firmware

Before you start updating, you need to follow a few critical steps, and neglecting them can lead to data loss or failure in the installation process.

First, check the current firmware version. To do this, go to Settings. → The phone. → Version. MIUI. Take a note of this information or take a picture of it, and you'll need it to choose the right firmware. MIUI Global 10.2 cannot be installed immediately MIUI 14 - an intermediate upgrade will be required.

Second, make sure the battery is at least 60 percent charged, and interruption due to battery discharge is one of the main reasons for the buildup of the devices, and free up at least 3-4GB of storage: updates weigh between 1.5 and 2.5GB, plus the system needs a backup for temporary files.

• 🔋 Battery charge: at least 60% (optimum - 80%+)
• 📱 Free space: 3-4 GB in internal memory
• 🔗 A stable Internet connection (for the OTA-update)
• 🔐 Backup of data (contacts, photos, messages)
• 🛠️ Cable USB Type-C (original or certified)

⚠️ Note: If your Mi Max 3 was purchased in China and is running on the MIUI China, do not install Global firmware without first unlocking the bootloader, this will lead to an Anti-Rollback error and lock the device.

For backup, use the built-in Backup (Settings) application. → Additional settings → Backup & reset) or third-party services like Google Drive or Mi Cloud:

• 📞 Contacts (export to) VCF-file)
• 📸 Photos and videos (copy to PC or cloud)
• 💬 Messages (use) SMS Backup & Restore)
• 🎮 Save games (via Google or Mi Account)

Method 1: Air Update (OTA)

The easiest and safest method is to update through OTA (Over-The-Air is suitable for users who already have their phone getting official Xiaomi updates:

• 🔄 Automatic compatibility check
• 🛡️ Minimum risk of error
• 📱 It does not require a PC connection.

Instructions:

1. Connect to Wi-Fi (updating via mobile internet can lead to additional costs).
2. Go to Settings → About the phone → System update.
3. Click Check Updates. If the update is available, the Download button will appear.
4. After download, click Set and wait for the reboot.

If the update is not available, your version may be MIUI It's outdated, and you need an intermediate upgrade. MIUI 10. MIUI 11, and then on MIUI 12.In this case, use manual installation via Recovery (see next section).

⚠️ Attention: If after OTA-The phone has been stuck on the Mi logo for more than 10 minutes, don't panic. Try to force the device to restart by holding the power button for 15-20 seconds. If this doesn't work, you'll need to reset via Recovery.

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If OTA-Update weighs more than 2 GB, download it via Wi-Fi 5 GHz or connect your phone to your PC in modem mode – this will speed up the process and reduce the risk of download breaks.

Method 2: Manual update via Recovery

If OTA-Updates are not available or you want to install a specific version MIUI, Use Recovery. This method is suitable for official firmware in.zip format and does not require unlocking the bootloader.

You'll need:

• 📱 Xiaomi Mi Max 3 with unlocked screen
• 💻 Computer (for downloading firmware)
• 🔌 Cable USB Type-C
• 📁 Firmware in.zip format (download from the official Xiaomi website)

Step-by-step:

1. Download the firmware for your model (nitrogen) and region (Global/China/EEA). For example, for MIUI 14 Global Choose a File of View miui_NITROGENGlobal_V14.0.1.0.TMDMIXM.zip.
2. Rename the file to update.zip (be sure!) and move it to the root directory of the phone’s internal memory (not to the folder!).
3. Turn off the phone. Press the Volume Up buttons at the same time. + Food to enter Recovery.
4. In the Recovery menu, select the language (if available) then: Install update.zip to System 1 → Yes.
5. Wait for the installation to complete (usually 5-10 minutes) and select Reboot to System.

If the phone gives an Anti-Rollback error after the reboot, you are trying to install an older version. MIUI, It's better than the one that's already worth it:

1. Download the same or newer version.
2. Repeat the installation process.
3. If the error persists, use Fastboot (see next section).

4. Method 3: Fastboot Firmware (for power users)

The Fastboot method is used when:

• 🔄 You need to update the firmware with a full reset settings
• 🛠️ The phone is not turned on or stuck on the logo
• 🔓 Requires to unlock the loader

This method is more complicated and requires an unlocked bootloader. If you have never unlocked it before, follow the instructions of Xiaomi. Note: unlocking erases all data from the phone!

Tools required:

• 🖥️ PC Windows/Linux
• 🔌 Cable USB Type-C (original)
• 📁 Firmware in.tgz format (download from the official website)
• 🛠️ Mi Flash Tool (Download Link)
• 🔑 Unlocked loader

Instructions:

1. Unpack the downloaded firmware (for example, nitrogen_global_images_V14.0.1.0.TMDMIXM_20231010.0000.00_12.0_global_1234567890.tgz) in a folder without spaces in the title (for example, C:\MiMax3\rom).
2. Install the Mi Flash Tool and drivers for Xiaomi (they usually come with a bundle).
3. Turn off the phone. Press Volume down + Power to enter Fastboot mode (there will be a hare in a hat-eared hat on the screen).
4. Connect your phone to your PC. In the Mi Flash Tool, press Select and point the path to the unpacked firmware.
5. Select Clean All (full reset) or Clean All and Lock (reset + lock bootloader).
6. Press Flash and wait until it is completed (usually 5-15 minutes).
7. After successful firmware, the phone will restart automatically.

⚠️ Note: If the Mi Flash Tool is running a critical partition flashing error, it means your bootloader is locked. Unlock it through the Mi Unlock Tool and try again.

Advantages of the Fastboot method:

• ✅ The ability to restore the brick»
• ✅ Clean, garbage-free installation
• ✅ Support for all versions MIUI

Disadvantages:

• ❌ All data is erased
• ❌ Requires unlocking the loader
• ❌ Higher risk of error

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Fastboot is the only way to flash the Mi Max 3 if the phone is not turning on or stuck on the logo, but it requires first unlocking the bootloader and completely resetting the data.

5. Alternative methods: custom firmware and informal updates

If the official firmware is no longer coming out for the Mi Max 3, and you want to get fresh Android or additional features, you can consider custom firmware like:

• 📱 LineageOS (Pure Android without a free Android) MIUI)
• 🔧 Pixel Experience (like the Google Pixel interface)
• ⚡ Havoc-OS (many customization settings)
• 🌍 MIUI EU (informal MIUI China-bound)

Warning: Installation of custom firmware requires:

• 🔓 Unlocked loader
• 🛠️ Established custom recovery (TWRP)
• 📌 Knowledge of the basics of working with ADB and Fastboot

Instructions for installing TWRP and custom firmware:

1. Download. TWRP Mi Max 3 from the official website (link).
2. Install. TWRP Fastboot: Fastboot Flash Recovery twrp-3.7.0_9-0-nitrogen.img fastboot boot twrp-3.7.0_9-0-nitrogen.img
3. In TWRP, make a backup of the current firmware (Backup → Select Partitions → Swipe to Backup).
4. Download custom firmware (for example, lineage-20.0-20231010-nightly-nitrogen-signed.zip) GApps (if you need Google services).
5. Install firmware and GApps via Install in TWRP.
6. Run Wipe → Format Data (required!), then reboot.

The advantages of custom firmware:

• 🆕 Fresh versions of Android (for example, Android 13 instead of Android 9)
• 🚀 Improved productivity
• 🎨 More Customization Opportunities

Cons:

• ⚠️ No official support
• 🔋 Possible battery or camera bugs
• 📶 Problems with OTA-update

⚠️ Warning: Installing custom firmware voids warranty and may result in loss of features like Widevine L1 (no HD Netflix or VoLTE (calling issues) 4G). Before installing, check the firmware reviews on forums 4PDA or XDA Developers.

Typical errors and their solutions

Even if you follow the instructions, you can get errors, and let's look at the most common problems and how to fix them.

If the sound is gone after the update, the camera is not working or the network is not catching, try:

1. Reset the settings to factory (Settings → Additional → Resetting).
2. Install the firmware again via Fastboot.
3. Check the integrity of the firmware files (compare) MD5-hash).

For recovery. IMEI (if he's thrown on Null/Null):

1. Enter the dialer: ##4636##.
2. Go to Phone Information and check for IMEI status.
3. If IMEI No, use the ChimeraTool or Maui utility. META repair.

7. How to check the success of the update

After installing the new firmware, you need to make sure that everything went right.

1. Check the version. MIUI and Android: Settings → The phone. → Version. MIUI and the Android version.
2. Make sure all functions are working: 📶 Mobile network and Wi-Fi 📞 Calls and SMS 🎥 Camera (main and front) 🔊 Speakers and microphone 🔋 Charging (check charging speed)

AnTuTu Benchmark

Geekbench

Widevine

Settings → The phone. → All parameters. → Widevine Level

L1

If the phone is running faster after the update, try:

• 🔄 Reset the cache (Recovery) → Wipe cache).
• 🔋 Calibrate the battery (discharge to 0%, then charge to 100% without interruptions).
• 🛠️ Disable unnecessary background processes (Settings) → Battery → Optimization).

If the new firmware is unstable (lagging, overheating), return to the previous version via Fastboot or install a custom core to optimize performance.

8. Frequently Asked Questions (FAQ)