How to get a root rights on Xiaomi Mi 9T: a complete guide with unlocking the bootloader

Xiaomi Mi 9T (He's a Redmi. K20 In some regions, it remains a popular smartphone even years after its release, with powerful stuffings based on the Snapdragon 730 and the Snapdragon. AMOLED-The screen makes it relevant for enthusiasts who want to unleash their full potential through root rights. MIUI Xiaomi has tightened security policy, and the old methods with KingRoot or SuperSU have long been out of order.

This article is a relevant guide to 2026 A year that takes into account all changes in the firmware MIUI 14/15 We're going to look at two reliable methods: Magisk (recommended) and the alternative method with a patch. boot.img. You will also learn how to avoid common bugs like Fastboot error: remote: 'unlock device critical' or hanging on the logo after firmware is installed.

One wrong step can turn your Mi 9T into a brick, and Xiaomi warranty is canceled after unlocking the bootloader. If you are not prepared for the risks, you better stop at this paragraph.

Why do I need to get root rights on Xiaomi Mi 9T?

Root access opens up features not available in standard firmware:

• 🔧 Remove System Applications: Remove Unnecessary Services MIUI (For example, com.miui.analytics that eat up battery and traffic.
• ⚡ CPU Overclocking: Set up the Snapdragon 730 cores via Kernel Adiutor to improve gaming performance.
• 📱 Customization of the interface: Install themes, fonts and animations via Substratum or LSPosed.
• 🔒 System-level Ad Blocking: Through AdAway or Modified Hosts File.
• 📁 Full file system access: Edit build.prop to trick applications (e.g., changing device model).

But there is a downside: some banking applications (like SberBank Online or Tinkoff) refuse to work on rooted devices, and there is a risk of data loss if the firmware is incorrect, and if your goal is simply to remove ads, consider alternatives like MIUI Optimizer without root.

⚠️ Attention: Starting with MIUI 12.5, Xiaomi has implemented anti-Rollback protection (ARB). If you sew the old firmware version after the new one, the device locks forever. ARB In Settings → The phone. → Version. MIUI beforehand.

Preparation of the device: what to do before unlocking

Before you start unlocking the bootloader and obtaining root rights, follow the mandatory preparatory steps:

Make a backup copy of the data (photos, contacts, messages)

Charge your phone at least 70%

Install ADB/Fastboot drivers on PC (link to official Xiaomi package)

Download the latest version of Magisk (v26.4+)

Disable all antiviruses on PC (they can block fastboot commands)

Check the device model: Mi 9T (codename davinci or Mi 9T Pro (raphael) - instructions for them are different!-->

Pay special attention to backup. Use Mi Cloud for contacts and notes, and for the rest of the data, Titanium Backup (if you haven't already received it) or manual transfer to your PC. Unlocking the bootloader will erase all the data from internal memory!

Also check the firmware version. For the Mi 9T, current global MIUI builds start with V14.0.1.0.TFJMIXM (Android 13). If you have an older version, upgrade via Settings → Software Update. You can only stitch official builds with root - custom firmware like LineageOS requires separate instructions.

Through Magisk and TWRP

Patch boot.img without TWRP

I haven't decided yet.

I already have a rut, looking for solutions to problems.-->

Method 1: Getting Root Rights through Magisk and TWRP (Recommended)

This is the most reliable way, but it requires unlocking the bootloader and installing a custom Recovery. MIUI 14/15 Android-based 12/13.

Step 1: Unlock the bootloader

Xiaomi officially lets you unlock the bootloader, but the process takes 7 days to wait:

1. Link your Mi Account to your device in Settings → Xiaomi Account.
2. Activate Developer Mode: Go to Settings → About Phone and click on MIUI Version 7 times.
3. Enable OEM Unlock and USB Debugging in Settings → Additional → For Developers.
4. Connect your phone to your PC and execute the command: adb reboot bootloader
5. In fastboot mode, execute: fastboot oem unlock On the phone screen, confirm unlock (a 168-hour timer will appear).

After waiting, repeat the command fastboot oem unlock – the bootloader will be unlocked, and the data from the phone will be completely deleted.

Step 2: Installation of TWRP

Download the latest version TWRP for davinci, for example, twrp-3.7.0_9-0-davinci.img) And run it through fastboot:

fastboot flash recovery twrp-3.7.0_9-0-davinci.img


fastboot boot twrp-3.7.0_9-0-davinci.img

If after the reboot, TWRP is replaced by a stock recavator, follow the additional command:

fastboot flash recovery_ramdisk twrp-3.7.0_9-0-davinci.img

Step 3: Magisk firmware

TWRP:

1. Click Install and select the downloaded Magisk-v26.4.apk.
2. Swipe for confirmation.
3. After installation, reboot to the system.

Check for root rights through the Magisk app or command in the terminal:

su

If a request for rights appears, the root is installed successfully.

💡

Use Magisk, not SuperSU – the latter does not support new versions of Android and can cause a freeze on the Mi 9T.

Method 2: Patch boot.img without TWRP (alternative)

If you can’t install TWRP (for example, due to an OrangeFox error), you can get a root by patching boot.img through Magisk on a PC. This method is suitable for firmware with a locked bootloader (but already unlocked earlier).

Step 1: Extract boot.img

Download the full firmware for your model from the Xiaomi Firmware Updater website. Unpack the archive and find the boot.img file in the images folder.

Step 2: Patching through Magisk

Transfer boot.img to your phone and in the Magisk app, select:

1. Install → Select and Patch a File.
2. Point the way to boot.img.
3. After patching the file magisk_patched.img It will appear in the Download folder.

Step 3: Firmware patch boot.img

Connect your phone to your PC in fastboot mode and do:

fastboot flash boot magisk_patched.img


fastboot reboot

If after the reboot the root does not appear, try to sew init_boot Instead of boot (relevant to Android) 13+):

fastboot flash init_boot magisk_patched.img

⚠️ Attention: On some firmware MIUI 15 patch boot.img And it leads to a hanging on the logo, and then you have to go back to the method of using the TWRP Or use a fastboot boot. magisk_patched.img (time-root).

Typical errors and their solutions

Even with the right instructions, there can be problems.

If after receiving the root, the phone stopped booting, try:

• 🔄 Log in to fastboot (Power) + Vol Down) and flash the stock firmware through the Mi Flash Tool.
• 📱 Holding the Power + Vol Up for entrance to TWRP and re-establish the backup (if you did).
• 🔧 Use fastboot erase userdata to reset (data will be lost!).

How to hide root rights from apps (Magisk Hide)

Many apps (banks, games, services like Netflix or Pokémon GO) block the work on rooted devices. To get around this, use the Magisk Hide feature:

1. Open Magisk and go to Settings → Magisk Hide.
2. Activate the option and select the applications that need to hide the root.
3. Reboot the phone.

For banking applications additionally:

• 🏦 Install the MagiskHide Props Config module and change the device fingerprint to stock.
• 🔒 Disable Debugging in the Developer Settings.
• 📱 Use alternative versions of apps (e.g. SberBank Online for Android Go).

⚠️ Warning: Since 2023, SberBank and Tinkoff have been battling root access hard.If Magisk Hide doesn't help, try Island or Shelter to isolate apps.

How to remove root rights and return stock firmware

If you need to return the phone to its original state (for example, for sale or warranty repair), follow the following steps:

1. Download the full stock firmware for your model from the official website.
2. Unpack the archive and place the firmware folder in the root of the C: drive (the path should not contain Cyrillic!).
3. Install the Mi Flash Tool and connect your phone in fastboot mode.
4. In the program, select a firmware folder and press Refresh. The device must be determined.
5. Select Clean All mode and press Flash.

Once you've done the firmware, the phone will go back to factory settings, and the bootloader will remain unlocked.

fastboot oem lock

But remember: locking the bootloader after unlocking can lead to problems with MIUI updates!

💡

Before selling your phone, run a fastboot oem lock and run the stock firmware, which will increase customer confidence and avoid questions about the "hacked" device.

FAQ: Frequent questions about root rights on Xiaomi Mi 9T