Why Xiaomi TV makes strange sounds: 7 reasons and what to do

Introduction: When TV sounds are not the norm

You've turned on Xiaomi Mi TV or Redmi Smart TV, but instead of the usual quiet buzz, hear a squeak, click or even a squeak? Don't panic - in 80% of cases it's not a malfunction, but a feature of the system. However, you can't ignore the sounds either: they can signal failures in firmware, overheating or wear of components.

In this article, we’ll look at all possible causes, from harmless system notifications to critical hardware malfunctions, how to distinguish normal sounds (such as cooler work) from alarms, and what to do in each case. And if your Xiaomi TV only makes sounds when you turn on or off, we have a separate section with explanations.

System sounds: notifications and signals

The most innocuous reason is the built-in audible alerts, and Xiaomi TVs (especially Android TV models) use sounds to:

• 🔔 Connecting/disconnecting devices HDMI-CEC (for example, a sound panel or a console)
• 📱 Notifications from apps (such as Mi Home or Netflix)
• ⚠️ Warnings about low charge of the remote (if it has a battery)
• 🔄 Firmware updates (sound can be heard when files are uploaded in the background)

How do you check? Go to Settings → Sound → System Sounds and turn off the Notification Sound. If the beep is gone, the problem is solved. If not, read on.

⚠️ Attention: On Xiaomi models TV A2 And the newer system sounds can be tied to the voice of the Google Assistant, so to turn them off, say, "OK, Google, turn off notification sounds," or do it in the assistant settings.

More often when switched on/off|During work|When connecting devices|No sound.|Another option-->

2. Cooler operation: buzzing and buzzing

All Xiaomi TVs with a diagonal of 55 inches are equipped with active cooling - a cooler (fan), which turns on automatically when the matrix or processor is heated.

• 🌀 Quiet buzzing (comparable to a laptop)
• 🔄 Periodic change of tone (cooler regulates speed)
• 🛑 Complete shutdown 10–30 minutes after TV shutdown (cooling)

When do you sound the alarm?

• 🚨 It is loud and constant (possible dust or bearing malfunction)
• 🔥 Clicking or creaking (getting a foreign object)
• ❄️ Not included at all (the risk of overheating!)

Solution: Clean the air vents with compressed air (without opening the case!) or contact the service. On Xiaomi TV Q2 and P1 models, the cooler is located at the rear at the top — it is easy to find on the grille.

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If the cooler only makes noise when the screen is bright, try lowering Local Dimming in the settings of the picture, which will reduce the load on the processor and heat generation.

3. Clicks on relays and power supplies

Short clicks when turning on or off the TV are the work of a relay in a power supply or backlight inverter. For Xiaomi, this is normal if:

• 🔌 The click is single and occurs only when turned on / off.
• 💡 No accompanying problems (screen flickering, spontaneous reboots)
• 🔄 The sound does not repeat during operation.

Dangerous symptoms:

⚠️ Note: If the Xiaomi TV clicks and immediately turns off, DO NOT try to turn it on again - this can cause the power supply to burn.

4. Speaker's Whip: Hardware and software failures

If the TV speakers hear squeak, wheezing or distorted sound, the reasons may be as follows:

• 🎵 Audio chip problems (often on Xiaomi Mi models) TV 4S 2018–2020)
• 🔊 Damage to speakers (for example, after falling or getting moisture)
• 📱 Conflict with connected devices (sound panel, headphones)
• 🖥️ Firmware failure (especially after update)

Diagnosis:

1. Disable all external devices (HDMI, Bluetooth, AUX).
2. Launch the built-in Mi Music app and check the sound.
3. If the squeak remains, reset the sound settings: Settings → Sound → Reset the sound settings.
4. If you save the problem, reset to factory settings (section below).

Disable all external devices | Test embedded tunes |Reset audio settings |Reset firmware |Check for physical damage-->

5.Sounds when updating firmware

Xiaomi TVs can beep or short signals during software updates.

• 🔄 The sound is heard once when the update starts.
• 📥 The screen displays the loading progress bar
• ⏳ After the TV is finished, it restarts automatically.

Critical situation: if the TV is continuously beeping for more than 5 minutes, and there is no image on the screen or the Xiaomi logo is burning, this is a sign of a firmware failure.

1. Turn off the TV (remove the plug from the socket).
2. Wait 1 minute and turn it on again.
3. If the problem recurs, make a forced recovery via USB (instruction below).

6 Mechanical sounds: Something inside knocks or creaks

If you hear a knock, a squeak, or a foreign noise as you move your TV or change your angle of inclination, it's a mechanical problem.

• 🧲 Weakened matrix mounting (often on thin-body models, such as Xiaomi) TV Q1)
• 🔧 Infection of a foreign object (dust, debris, insects)
• 📦 Defect of the stand or bracket (if sound appears when tilted)

Decision:

• Carefully shake the TV (turned off!) – if you hear a knock, probably inside broke off the body element.
• Check the mounts of the stand: on Xiaomi models, they are often plastic and can crack.
• If the TV is on the wall, check the bracket: sometimes it is not TV that makes noise, but metal mounting details.

⚠️ Warning: If you suspect that an item has broken off inside the TV (such as part of the case or screen filter), DO NOT try to open it yourself. Xiaomi matrices use brittle layers that are easily damaged.

7. The sounds from the remote control: squeak and vibration

Users sometimes confuse the sounds of the remote with those of the TV. Modern Xiaomi remotes (for example, for Mi TV Stick or Redmi Smart TV) can:

• 🔊 Beeping at low battery charge
• 📶 Vibrate when pressing buttons (on some models)
• 🔋 Make a sound when connected via Bluetooth

How to check:

1. Turn off the TV and press any button on the remote near your ear – if the sound comes from it, the problem is the remote.
2. Change the batteries (even if the indicator shows the charge).
3. Reset the remote: Press the Menu + Home button for 5 seconds.

If the remote only makes sounds when you hover over the TV, it's possible that the infrared sensor (on models with an IR transmitter) is activated.

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If the Xiaomi TV only makes sounds when using the remote, check it first – 60% of the time, the problem lies in it, not in the TV itself.

FAQ: Frequent questions about Xiaomi TV sound