How to Reboot Xiaomi Mi 9: 5 Workplaces (Including Forced Rebuke)

Why the Mi 9 might require a reboot

The Xiaomi Mi 9, released in 2019, is still a popular device thanks to its powerful hardware (Snapdragon 855, 6/8 GB of RAM) and current MIUI firmware. However, even flagship models sometimes “glut”: applications suddenly close, the screen freezes on the Mi logo, or the phone ceases to respond to touch. In 80% of these cases, a banal reboot helps – but how to do it if the sensor does not work or the power button is jammed?

In this article, we will look at all possible reboot methods, from standard shutdown to forced reset via Recovery or Fastboot. We will focus on situations where the Mi 9 “burst” after a failed update or firmware experiments, and you will learn how to distinguish a soft reboot (without loss of data) from a hard reset (with deletion of user files), and when to apply.

Warning: If your Mi 9 doesn't turn on after falling or getting moisture, a reboot is unlikely to help - it needs a diagnosis at the service center. But if the problem is software (hang, cyclic reboot, system errors), our instructions will bring the phone back to life.

Method 1: Standard Reboot through the Menu

The easiest and safest method is to reboot via MIUI, which is suitable if the smartphone responds to touch, but is unstable (for example, brakes or overheats).

1. Unlock the screen (input a PIN or pattern lock if necessary).
2. Hold the power button (located on the right side of the device) for 2-3 seconds until the menu appears.
3. In the window that appears, click Reboot (or Restart if the system is in English).
4. Confirm the action if necessary.

If the power button fails (for example, due to mechanical failure), use an alternative path:

• 📱 Open the Settings. → The phone.
• 🔄 Scroll down and tap Reboot.
• ⚡ Confirm the action in the dialog window.

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If the Mi 9 brakes again after the reboot, check the free space in memory (should be at least 10% of the total) and close the background applications through Settings → Applications → Application Management.

This method does not delete data or affect settings, but if the system is badly damaged (for example, after a failed update), a standard reboot may not work, in which case move on to the following methods.

Method 2: Forced Reboot (Hard Reboot)

If the Xiaomi Mi 9 is completely frozen — does not respond to touch, does not turn off through the menu, or the screen shows a black background with the Mi logo, you will need a forced rebuke. This method simulates battery extraction (although in the Mi 9 it is not removable) and resets all the time processes.

Instructions for forced reboot:

1. Hold the power button and the volume button (both on the right side) at the same time.
2. Keep them clamped for 10-15 seconds until the screen goes out and the phone vibrates.
3. Release the buttons – the device should automatically restart.

If the Mi 9 is stuck on the logo again, repeat the procedure 2-3 times in a row, which can help if the problem is caused by a temporary kernel failure.

⚠️ Note: The forced rebate does not delete user data, but it can interrupt background processes (such as downloading files or updating applications).If you performed critical operations before hanging, check their status after restarting.

Method 3: Reboot to Recovery Mode

If the Xiaomi Mi 9 is turned on but immediately crashes into a cyclic reboot or shows a No command error, you will need access to Recovery Mode. This tool allows you to reset settings, clear the cache or install the update manually.

To boot up to Recovery:

1. Turn off the phone (if it is turned on, use method 2 to force it to turn off).
2. Press the power button and the volume button at the same time.
3. Hold them until the Mi logo and Recovery menu appear (usually 5-10 seconds).

In the Recovery menu, you'll see several options (in English or Chinese).

• 🔄 Reboot - a normal reboot.
• 🧹 Wipe data – complete reset to factory settings (deletes all data!).
• 📁 Wipe cache – clearing the cache (safe, data is not deleted).
• 📥 Apply update – installing updates with SD-map.

Use the volume buttons (up/down) to navigate, and the power button to confirm.

Clear cache (Wipe cache)|Reboot system (Reboot)|Check integrity)|Apply update-->

⚠️ Warning: If you choose Wipe data, all data (photos, contacts, messages) will be deleted! Try other options like cache clearing or reboot beforehand. If the Mi 9 doesn't recognize touches in Recovery, connect it to your PC and use the Mi Flash Tool for firmware.

Method 4: Reboot via Fastboot (for power users)

If the Mi 9 doesn't boot even to Recovery, then Fastboot mode remains, allowing you to reflash the device, unlock the bootloader, or perform diagnostics, a method that requires a computer connection and knowledge of ADB/Fastboot commands.

Instructions for restarting via Fastboot:

1. Turn off your phone (if necessary).
2. Press the power button and the volume down button at the same time.
3. Hold it until the image of the hare in the hat-eared (Fastboot logo) appears.
4. Connect the Mi 9 to the PC via USB-cable.
5. On your computer, open the command line (Win + R → cmd) and type:

fastboot devices

If the device is determined (its serial number will appear), enter the command to restart:

fastboot reboot

If the Mi 9 is not responding to commands, check:

• 🔌 Quality. USB-Cable (Try the Original Xiaomi Cable).
• 🖥️ Availability of Mi Flash drivers on PC (download from the official website).
• 🔒 bootloader status (if it is blocked, some commands will not work).

Once a day.|Once a week.|Only when you're hanging.|I never reboot.-->

In Fastboot mode, you can also reset to factory settings by the command:

fastboot erase userdata


fastboot erase cache




fastboot reboot

This sequence will completely clear internal memory, including accounts and installed applications. Use it only as a last resort!

Method 5: Reboot through ADB (if USB-debugging is on)

If the Mi 9 has been activated before USB-Debugging (in the developer settings), you can reboot it through ADB This is useful if the screen is touch-sensitive, but the system is unstable.

Step-by-step:

1. Connect the Mi 9 to your computer via USB.
2. Open the command line (cmd) and check the connection:

adb devices

If the device appears in the list, enter the command to reboot:

adb reboot

Additional useful ADB commands:

• 🔄 adb reboot recovery – reboot in Recovery.
• 📱 adb reboot bootloader – reboot in Fastboot.
• 🗑️ adb shell pm clear com.miui.home – launcher reset (helps with desktop errors).

If ADB does not recognize the device, check:

• 🔌 Connection to USB (Try another port or cable).
• 📋 Debugging permission on the phone (notification should appear).
• 🖥️ The Mi. PC Suite or Platform Tools on your computer.

Table: Comparison of Xiaomi Mi 9 reboot methods

So, you can choose a method based on your symptoms, for example, if the Mi 9 is just slowing down, you can use a standard reboot, and if the device doesn't turn on at all, you'll have to use the Fastboot or carry it to the service.

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Hard Reboot is the most versatile way, because it doesn't require a desktop screen or a PC connection, but if the problem is caused by firmware damage, only flashing through Fastboot or Recovery will help.

The Frequent Causes of Xiaomi Mi 9 Halts and How to Avoid Them

Reboot is an "ambulance" for a smartphone, but it's better to prevent a problem than deal with the consequences.-5 The reasons why Mi 9 may require frequent reboot:

1. Overflowing memory: If less than 500MB is free, the system starts to slow down. The solution is to delete unnecessary files or transfer them to the computer. SD-map.
2. Failures after update: Unstable versions of MIUI can cause bootloop.Solution - roll back to previous firmware via Recovery.
3. Application conflict: Some programs (especially root-access) may block system processes.
4. Overheating: The Snapdragon 855 is prone to heat up at high loads. The solution is to turn down the brightness of the screen and close the background tasks.
5. Damaged. SD-map: If you use an external drive, its errors can slow down the system.

To minimize the risk of hanging:

• 📱 Update your firmware regularly (but not through beta versions!).
• 🧹 Clean the cache once a month through Settings → Memory. → Clear the cache.
• 🔋 Avoid battery drain (keep the charge at 20–80%).
• 🛡️ Do not install applications from unknown sources.

If the Mi 9 started to “glutch” after falling or getting moisture, a reboot is unlikely to help – you need a diagnosis of the motherboard.

FAQ: Answers to Frequent Questions