How to check the remote from the TV Xiaomi: from simple to professional methods

Xiaomi's remote control from a TV has stopped responding to pressing, and you don't know if it's the problem or the TV itself? This is a situation that many owners of the brand's smart TVs know. Before you run to a service center or order a new remote, you should make sure that it's the fault of the saturated power supply, contaminated contacts or even interference from other devices.

In this article, we will discuss 5 reliable ways to check the remote, from basic (with a smartphone) to advanced (using a multimeter). You will learn how to diagnose a malfunction without special tools, what hidden functions of the Xiaomi Mi TV remotes will help in testing, and what to do if the remote is working but the TV does not respond. All methods have been tested on Mi TV 4S, Mi TV Q1, Mi TV A Pro and other popular series.

Important: If your TV supports control through the Mi Remote app (available for Android and iOS), first check if the TV responds to commands from your smartphone. If yes, the problem is exactly in the physical remote; if not, the TV's IR receiver may be faulty or you need to reset.

Visual inspection: first signs of malfunction

Start with an external inspection of the remote, and often the problem is mechanical damage or contaminants that are easy to repair on your own.

• 🔋 Batteries: check if the contacts have oxidized, even new batteries can be installed incorrectly (polarity is confused) or fit poorly due to deformation of the compartment.
• 💧 Moisture and dust: if the remote was falling into a liquid or lying in a dusty place for a long time, the contacts of the buttons could oxidize.
• 🔨 Cracks and chips: inspect the case for physical damage. Even a small crack can disrupt the circuit board inside.
• 📶 IR emitter: There should be a transparent or dark window on the end of the remote (usually at the top) and if it is contaminated or taped, the signal will not pass.

If you find contact oxidation, clean them carefully with a cotton swab dipped in alcohol. Use compressed air (such as a can of cleaning equipment) to remove dust from under the buttons. Do not disassemble the remote without needing it - many Xiaomi models have fragile latches that are easy to break.

⚠️ Warning: If the remote is falling into water, don't dry it with a hair dryer or on a battery. Heat can warp the board. It's better to leave it in rice or silica gel for 24 to 48 hours.

Battery Check: Why New Items May Not Work

The most common cause of a remote that doesn't work is a dead battery, but even if you just replaced it, it can still be a problem.

1. Polarity: Make sure batteries are installed correctly («+» ce «+», «−» ce «−»). On Xiaomi remotes, connectors are often marked in small print.
2. Contact: press the batteries with your finger and try to press any button. If the remote is running, the problem is poor contact (you need to bend the metal plates inside the compartment).
3. Battery type: Use alkaline cells only. Salt or rechargeable (Ni-MH) cells may not provide enough voltage.
4. Voltage: If you have a multimeter, measure the voltage on the contacts. It should be at least 2.8-3.0 V for two AAA batteries.

Interesting fact: Xiaomi Mi TV remotes with Bluetooth (for example, for Mi TV Q1E or Mi TV 6 OLED models) consume more power than IR remotes. If the batteries are discharged to 2.5 V, the Bluetooth module may turn off, but the IR signal will still work. So check the remote in both modes.

Try other batteries (even if they are new)

Drinking contacts with alcohol

Check the remote on another Xiaomi TV

Reset the remote (if supported)-->

3. Checking the IR remote with a smartphone

If your remote uses infrared (rather than Bluetooth), it can be checked with a smartphone camera, which works because IR radiation is visible through the lens of most cameras (although the human eye does not perceive it).

Instructions:

1. Turn on the camera on your smartphone (any: main, front or even camera in the scanning application is suitable). QR-code).
2. Point the lens over the IR emitter of the remote (usually this is the upper part where the window is located).
3. Press and hold any button on the remote while looking at the phone screen.
4. If the remote is in good working order, you'll see a flicker of purple or white light in the lens, and if there's no flicker, the remote doesn't emit a signal.

Please note:

• 📱 On some smartphones (like iPhones or Xiaomi flagships with IR filters), this method may not work.
• 🔦 Bright sunlight or artificial light can drown out the IR signal.
• 🔄 If there is flickering, but the TV does not respond - a problem in the IR receiver TV or in the settings (for example, the signal reception mode is turned off).

4. Check Bluetooth remote via TV settings

Remotes for modern Xiaomi TVs (for example, Mi TV Q2, Mi TV ES 2022) often use Bluetooth instead of IR. Such remotes can not be checked through the camera of a smartphone, but can be diagnosed through the TV menu.

How to do this:

1. Turn on the TV with a button on the case (if the remote does not work at all).
2. Go to Settings → Bluetooth and Devices → List of connected devices.
3. Find your remote control (usually called Mi Remote Controller or similar) in the list.
4. If the remote is displayed as “Connected” but does not work, try to disable and reconnect it:

Settings → Bluetooth and devices → [Select remote] → Forget the device


Then press and hold the Mi + OK buttons on the remote for 5 seconds to re-synchronize.

If the remote is not listed at all:

• 🔄 Try restarting the TV (turn off the network for 30 seconds).
• 🔋 Replace batteries – Bluetooth module is sensitive to voltage.
• 📡 Check if other Bluetooth devices (earphones, speakers) interfere.

⚠️ Note: On some Xiaomi models TV (Like Mi. TV 4A) The Bluetooth remote may not appear in the list of devices, but still work. In this case, check it through the Mi Remote app (see section 6).

5. Multimeter Verification: for Advanced Users

If you have a multimeter, you can check the remote more accurately, which is a method that can diagnose both infrared and Bluetooth remotes, but requires accuracy.

What you need:

• Multimeter (in the mode of measuring resistance or voltage).
• Screwdriver for disassembling the remote (usually cross, size PH0).
• Tweezers or a needle to check contacts.

Procedure:

1. Battery check: Set the multimeter to DC 20V. Apply the probes to the contacts of the battery compartment. The voltage should be 2.8-3.2 V.
2. Button check: Disassemble the remote (carefully chopping the latches). Put the multimeter in resistance mode (200 Ohms). Touch the contact pads of any button with your probes and press it. Resistance should drop to 0-10 Ohms.

IR diode testing (for IR remotes only):

• Find an IR diode (usually black with a transparent top) on the board.
• In diode testing mode (diode test), touch the legs of the diode with probes. It should pass current in one direction (it will show 0.6-0.8 V).

If you press the buttons, if you don't change the resistance, you're probably contaminated or oxidized, and you're going to clean them with a blower or an alcohol, and if the IR diode doesn't let current through, it's malfunctioning and needs to be replaced.

💡

If you are not sure about your soldering skills, do not try to repair the remote yourself. In Xiaomi service centers, the replacement of the IR diode or buttons is performed in 30-60 minutes under warranty (if it is valid).

6. Alternative ways to control the TV

If the remote is not working, and the TV needs to be turned on or configured urgently, use alternative methods:

• 📱 Mi Remote: Download the official Mi Remote app (available for Android and iOS). Connect to the same Wi-Fi network as your TV. Select your TV model from the list of devices and follow the instructions on the screen.
• 🖱️ USB-Mouse or keyboard: Connect USB-You can put a mouse on the TV, and the cursor will come up on the screen, and you can control the menu. TV (Like Mi. TV Stick is also suitable for wireless keyboard.
• 🔌 Buttons on the TV body: There are physical buttons on the back or side of the TV (usually Power, Volume, Source). TV 4X) buttons hidden under the removable cover.
• 🎮 Gaming controller: If you have a Bluetooth-enabled gamepad (like the Xiaomi Game Controller), it can be connected to the TV via the Settings menu. → Bluetooth.

If neither method worked, there may be a problem with the TV itself: check if the power indicator is on (usually a red or white LED), if the indicator is not lit, the power supply or motherboard is faulty.

💡

The Mi Remote app can control the TV even without a Wi-Fi connection if both devices are on the same local network (via a router).

7. When is it time to carry the remote for repair?

If you've tried all of these, but the remote still doesn't work, you may need professional repairs or replacements, and note the following signs of a board malfunction:

• 🔥 The smell of burning from the remote body - indicates burned elements.
• 💥 Cracks on the board or chipped parts (for example, capacitors).
• 🔌 Short circuit – if the remote is heated when installing batteries.
• 📉 Unstable work – the remote is working, then not for obvious reasons.

The cost of remote repair in Xiaomi service centers:

If the TV is guaranteed, the remote repair can be free (check in the official Xiaomi service). Otherwise, it may be cheaper to buy a new remote - the original cost from 800 to 2000 rubles, and universal (for example, Xiaomi Mi Universal Remote) - from 500 rubles.

FAQ: Frequent questions about Xiaomi TV remotes