Xiaomi Redmi Note 9 is frozen and does not react: how to restart correctly

Your Xiaomi Redmi Note 9 suddenly stopped responding to touch, the screen stopped in one image and the buttons didn’t work? This is a situation familiar to many smartphone owners — especially after updating the system, installing heavy apps or working for a long time without rebooting. 90% of the time the problem is solved by a forced reboot, but it is important to do it correctly so as not to aggravate the situation.

In this article, we’ll look at all the working ways to restart the Redmi Note 9 (including the Note 9 Pro, Note 9S and Note 9T) when the phone is completely getting stuck, does not respond to the sensor or power button. You’ll learn how to avoid data loss when you use Recovery Mode, and what to do if the smartphone does not turn on after a reset. And for complex cases, a detailed hardware reset manual tailored to the features of the MIUI firmware.

Why Xiaomi Redmi Note 9 can freeze?

Before you restart the device, you need to understand why it's freezing, and that's going to help you avoid repeat failures.

• 🔄 Software conflicts: Application incompatibility, errors in MIUI After Google Services Update or Failure.
• 📱 RAM overload: Redmi Note 9 has 3-6 GB of RAM, but heavy games (Genshin Impact, Call of Duty Mobile) or background processes can exhaust it.
• 🔋 If the battery is discharged to 1-5%, the system can “hang” in an attempt to save energy.
• 🛠️ Hardware problems: Damage to the motherboard, oxidation of battery contacts or overheating of the processor (Helio) G85/G95).
• 📲 Incorrect Update: Interrupted Installation MIUI Or custom firmware through Fastboot.

If the freeze occurs regularly, check after the restart:

• 📊 Free memory in Settings → Storage (optimum - at least 10% of free space).
• 🔍 Processor Temperature through the Application AIDA64 (norm - up to 45°C to the plain).
• 🔄 Version MIUI In Settings → About the telephone (relevant to the 2026 year — MIUI 14/15).

⚠️ Warning: If the phone freezes after falling or getting moisture, do not try to reboot it - this can aggravate the damage.

Method 1: Soft reboot (if the phone responds to buttons)

If the Redmi Note 9 screen doesn’t respond to touch, but the power and volume buttons are working, try the standard reboot:

1. Press the power button for 10-15 seconds until the shutdown menu appears.
2. Slip on the “Reboot” option (if the sensor is working) or use volume buttons to navigate.
3. Confirm the action of the power button.

If the menu doesn’t appear, but the phone vibrates when holding the power button, try the button combination:

• 🔄 Hold on to power. + Increase volume 10-20 seconds until the screen goes out and starts rebooting.

Connect the charge (if the battery is discharged)

Make sure the buttons are not stuck

Try connecting headphones (sometimes the sensor is blocked due to static discharge)

Take a screenshot (if your phone is responding to Power + Volume Down)

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This is data-safe and works 70 percent of the time, so if your phone doesn't respond, you can go to the next one.

Method 2: Forced Reset (Hard Reset)

When the Redmi Note 9 is completely frozen and unresponsive, a hardware reset is required, a technique that simulates battery extraction (although it is not removable in modern smartphones).

Instructions:

1. Press the power buttons and increase the volume simultaneously.
2. Hold them for at least 20-30 seconds (even if the screen is unresponsive).
3. Release the buttons when the Xiaomi logo or vibration appears.

⚠️ Warning: If the phone turns on after a forced reboot, but immediately hangs back, this is a sign of damage to the file system.

MIUI updates

Installation of a new annex

Games or heavy loads

Charging connections

Other (write in the comments)-->

Method 3: Reboot with Recovery Mode

If the first two methods don’t work, you’ll need to use Recovery Mode, a safe way to reboot your phone without losing data (unless you choose Wipe Data).

How to log in to Recovery:

1. Turn off the phone (if it doesn’t respond, perform Hard Reset from method 2).
2. Press the power + increase the volume and hold until the Mi Recovery logo appears.
3. From the menu, select Reboot → Reboot to System (use volume buttons for navigation, power for confirmation).

If the phone loads into a Fastboot, you've been holding the buttons too long.

• 🔌 Turn off the phone from charging (if connected).
• 🔄 Press and hold the power button for 10 seconds to exit.

Recovery can also include:

• 📁 Check the integrity of system files (Wipe & Reset» → «Wipe Cache»).
• 🔄 Update the firmware manually (Install Update»).
• ⚠️ Perform a reset to factory settings (“Wipe Data” – delete all data!).

Method 4: Reboot through ADB (for advanced users)

If you have access to a computer and USB debugging is enabled, you can reboot your phone via ADB (Android Debug Bridge), which is useful if the sensor is working but the system is getting stuck.

Step-by-step:

1. Connect the Redmi Note 9 to the PC via USB-cable.
2. Open the command line (Win + R → enter cmd).
3. Enter the command: adb devices If the device is defined, execute: adb reboot

If ADB does not see the device:

• 🔌 Check the cable and port USB (Try another cable).
• 🔄 Reinstall Xiaomi drivers on PC.
• 📱 Turn on "Debugging by" USB» In Settings → The phone. → Version. MIUI (Tap 7 times according to version, then return to Additional settings → For developers).

⚠️ Please note: if you have never used ADB, This method may seem complicated, so you'd better go back to 1-3.

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If ADB doesn’t help, try the adb shell input keyevent 26 command, which simulates the pressing of the power button at the system level.

Method 5: Hardware reset (if the phone is not turned on)

If the Xiaomi Redmi Note 9 does not react to any action, does not load or vibrate, there is a complete reset via test point or flashing.

• 🔋 The phone does not charge (even when connected to the network).
• 📵 The screen remains black for more than a day.
• 🔧 Previous methods have not worked.

How to make a hardware reset:

1. Turn off the phone from charging.
2. Press the power + increase the volume + reduce the volume at the same time for 30 + seconds.
3. If the phone vibrates, release the buttons. It's a signal to reset the power controller.

If that doesn’t work, there are two options:

1. Fastboot flashing (requires PC and cable).
2. Contact the service center (if the warranty is valid or you are not confident in your abilities).

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Hardware reset is a last resort, and if the phone doesn't even respond to it, the problem is likely hardware (damage to the board, battery or plume).

What to do after the reboot?

When the Redmi Note 9 finally turns on, follow a few steps to avoid re-hangs:

• 📱 Update. MIUI: Go to Settings. → The phone. → Updating the system.
• 🧹 Clear the cache: In Settings → Warehouse → Clear the cache.
• 🚫 Remove Troubled Apps: Facebook, TikTok and High Demand Games Most Often Cause Conflicts.
• 🔋 Check the battery: If the phone turns off at 20 to 30% charge, the battery needs to be replaced.

If the freezes are repeated:

• 📊 Install Greenify or AccuBattery to monitor resources.
• 🔄 Back up the data and reset to factory settings (Settings) → Additionally. → Recovery and discharge).

If the problem is not fixed, it may be the fault of the hardware defect.

• 🔧 Contact the authorized Xiaomi service center (list on the official website).
• 💰 Replace the battery costs 1,500–2,500 ₽, Diagnostics of payment - from 1000 ₽.

FAQ: Frequent questions about the Redmi Note 9 freeze