How to reboot Xiaomi Mi 9T: all the ways from soft reboot to hard reset

Smartphone Xiaomi Mi 9T (also known as the Redmi K20 in some regions) – a popular model with a retractable front camera and AMOLED-It's a display, but even a reliable device like this sometimes requires a restart, and freezes, bugs after updates, or slow work are typical situations where the user has to find a way to restart the system. 9T There are 5 different methods of restarting, and the choice depends on the state of the device.

In this article, we will analyze all the current methods - from standard reboot through the menu to forced reset with a full lock screen. We will pay special attention to common errors that users make when rebooting (for example, holding buttons longer than 20 seconds can lead to a reset to factory settings!). 9T What to do if your phone doesn’t respond to the buttons.

Important: The instructions in this article are relevant for all versions of MIUI firmware (including global and Chinese), but some menu items may differ slightly. If your Mi 9T runs on custom firmware (for example, LineageOS), some methods may not work.

1. Standard reboot via menu

The easiest and safest way is to use the built-in MIUI settings, which is suitable if the phone responds to touch but is unstable (e.g., slows down or emits application errors).

To restart the Xiaomi Mi 9T through the menu:

1. Unlock the screen (input a PIN or fingerprint if necessary).
2. Hold the power button (located on the right side of the smartphone) for 1-2 seconds.
3. In the window that appears, click Reboot (or Restart in English).
4. Confirm action if the system requests a re-press.

It takes about 30 to 60 seconds. If problems persist after the reboot (for example, apps continue to crash), try clearing the cache through the Settings menu → Storage → Clear the cache.

⚠️ Warning: If the Reboot menu appears to “Switch Off,” but not “Reboot,” your Mi 9T It runs on an outdated version MIUI (In this case, turn off the phone first, then turn it on again.

Save important data (photos, contacts)

Close all applications in multitasking

Connect to charging if the charge is below 15%

Make sure there are no active system updates-->

2. Forced reset (hard reset)

If the Xiaomi Mi 9T is completely frozen — no touch response, black screen or frozen on the logo — a forced rebuke will be required, which simulates battery extraction (although it is not removable on the Mi 9T) and resets all temporary processes.

Instructions for hard reset:

1. Hold the power and volume button (top button on the left side) at the same time.
2. Hold them for 10-15 seconds until the screen goes out and the phone vibrates.
3. Release the buttons – the device will start restarting automatically.

On the Xiaomi Mi 9T, holding the buttons longer than 20 seconds can trigger Fastboot (black screen with a rabbit and the words Fastboot mode) mode, in which case release the buttons and repeat the procedure.

⚠️ Note: If after the hard reset Mi 9T It's a sign of firmware damage, and you'll need to flash it through Fastboot or Recovery (see section 5 for instructions).

Once a week.

Once a month

Only after the updates

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Another option-->

3. Restart to Safe Mode

Safe Mode on the Xiaomi Mi 9T allows you to start the system with disabled third-party applications, which helps diagnose the causes of freezes – if in safe mode the phone is stable, the problem lies in one of the installed applications.

To boot in Safe Mode:

1. Turn off the phone in the standard way (via menu or power button retention).
2. After completely switching off, hold the power button until the MI logo appears.
3. As soon as the logo appears, immediately press and hold the volume button (bottom button on the left side).
4. Release it only after the system is fully loaded - in the lower left corner of the screen the inscription Safe Mode will appear.

In this mode:

• 📱 Only system applications (e.g. Settings, Phone, Messages) work).
• 🔍 All widgets and background processes of third-party programs are disabled.
• 🔄 It is impossible to install or remove applications.

If there are no freezes in Safe Mode, uninstall the recently installed apps (especially those that requested administrator privileges).

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If you can’t get into Safe Mode the first time, try using the Security app in MIUI: open it, go to Optimization → Cog sign → Safe Mode and follow the hints.

4.Reboot via Recovery Mode

Recovery Mode is a service menu that allows you to reset cache, make a backup or return the phone to factory settings. Recovery is useful if the Mi 9T does not load beyond the logo or gives a No Command error.

Instructions for entering Recovery:

1. Turn off your phone (use the hard reset from Section 2 when you freeze).
2. Hold the power buttons and increase the volume at the same time.
3. Let them go when the Mi Recovery logo appears on the screen.

In the Recovery menu (management is carried out by volume and power buttons):

• 🔄 Choose Reboot. → Reboot to System for a regular reboot.
• 🧹 Choose Wipe & Reset → Wipe Cache if you need to clear the cache (does not delete user data!).
• ⚠️ Wipe Data – complete factory reset (removes everything, including photos and apps!).

⚠️ Note: If this error is displayed in Recovery MIUI version cannot be installed on this device, which means that the firmware is damaged or incompatible with the model).

5.Reboot via Fastboot (for power users)

Fastboot is a low-level firmware mode that is used in case of serious crashes (for example, after a failed update or “bricking” the phone). ADB/Fastboot.

Step-by-step:

1. Turn off Mi. 9T Connect it to your computer through the original USB-cable.
2. Hold the power and volume buttons until the Fastboot screen (black background with white rabbit) appears.
3. On PC, open the command line (Win + R → cmd) and type:

fastboot devices

If the device is determined (the serial number will appear), reboot the command:

fastboot reboot

If the team doesn’t work, try:

• 🔌 Reconnect the cable or use another USB-port (preferably) USB 2.0).
• 🖥️ Install Mi Flash Tool drivers from Xiaomi official website.
• 🔄 Enter the command fastboot reboot-bootloader, then repeat fastboot reboot.

Fastboot firmware recovery: If the phone doesn't boot even after restarting, you can reflash it with the official firmware.

1. Download the firmware for Mi 9T (codename davinci) from MIUI Download.
2. Unpack the archive and launch the script flash_all.bat (Windows).

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Use Fastboot only as a last resort – incorrect commands can lead to complete data loss or bootloader lock.

6. Automatic reboot on schedule

MIUI has an automatic reboot feature built in, which is useful for maintaining system stability, such as setting up a weekly reboot at night when the phone is not in use.

To activate the function:

1. Open Settings → Additional → Automatic Reboot.
2. Activate the switch Enable automatic reboot.
3. Select the days of the week and the time (it is recommended to set for the period when the phone is connected to charging).

Advantages of Automatic Reboot:

• ⚡ Cleaning RAM without manual intervention.
• 🛠️ Preventing the accumulation of system errors.
• 📉 Reducing the risk of hanging over long-term work.

⚠️ Note: If you are using the Mi 9T As an alarm clock, make sure that the automatic reset does not coincide with the time of waking up!

7. Frequent errors and their solutions

Even with the right reboot, Xiaomi Mi 9T users face typical problems.

If none of the methods worked, check:

• 🔋 Battery level (below 5%, the phone may not turn on even after restarting).
• 🔌 Correction of cable and charger (damaged cable can cause power failures).
• 🌡️ Body temperature (overheating above 45)°C blocks the loading).

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If the Mi 9T doesn’t turn on after several reboot attempts, try holding it on charge for at least 1 hour – sometimes a deep battery drain simulates a hardware failure.

FAQ: Answers to Frequent Questions