Xiaomi TV turns on, sound is, and no images: what to do in 2026

With the situation when the TV Xiaomi Mi TV, Redmi Smart TV Or another brand model turns on, makes a sound, but the screen stays black, thousands of users collide, and the reasons can be in trivial things like loosely connected cables, or serious hardware malfunctions. In 80% of cases, the problem can be solved independently without resorting to the services of a service center.

This article is a complete guide to diagnosing and troubleshooting when a Xiaomi TV has sound but no image, and we’ll look at all possible scenarios, from checking connections to flashing the device, and how to tell a software glitch from a hardware breakdown and when to really call a specialist.

Now, if your TV is responding to the remote (volume changes, channels switch), but the screen is black, that's one case. If the device is not responding at all, other than sound, the other. In this article, there are solutions for both.

1. Connection Checking: Where to Start Diagnosing

The first thing you need to do is make sure that the signal sources are not the problem, and often people are sinning on the TV, even though the console, cable, or even router is to blame.

✅ Disconnect all external devices (consoles, game consoles, receivers) from HDMI-If you've got an image after that, there's a problem with one of the connected gadgets, and plug them in one by one to identify the culprit.

✅ Check the cables. Even if they look whole, the contacts may have oxidized or bent. Try replacing them. HDMI-cable to the obviously working (for example, from another TV). TV 4S Redmi Smart TV X Series, where ports HDMI sometimes".

✅ Switch the signal source. On the remote, press the Source (or Input) button and select another input (for example, TV instead HDMI If the image appeared on another source, the problem is in a particular port or device.

• 🔌 Check the power: make sure the power cable is tightly plugged into the socket and the TV connector. Try another socket.
• 📺 Test signal: on the remote, press Menu → Settings → General. → Self-diagnostics. Some models have built-in image tests.
• 🔄 Reboot: Pull the plug out of the socket for 1-2 minutes, then turn on the TV again.

If after all the manipulations the screen remains black, but the sound works, move on to the next section.

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On models Xiaomi Mi TV P1 And now there's a feature called "Silent mode in the absence of signal." Make sure it's turned off in the audio settings, otherwise the TV may "silent" if you have a problem with the image.

2. Hardware malfunctions: what could break

If the Xiaomi TV turns on, there's sound, but there's no imagery, which could indicate a few hardware problems.

🔹 Screen lighting. The most common reason for black screens when sound is working is when you fail. LED-In this case, there's an image, but it's not visible because there's no backlight:

1. Turn on the TV in a dark room.
2. Light the screen with a flashlight at a 45-degree angle.
3. If you see a faded image, it is the lighting that is to blame.

🔹 Matrix or plume: If the backlight is working (the screen is evenly glowing), but the image is not, there may be problems with the matrix or the plumes connecting it to the motherboard. TV 4A after 2-3 years of operation.

🔹 Power supply: Insufficient voltage on the backlight or matrix board can cause the image to be missing, and the sound works because the audio amplifier is powered in a different line.

🔹 Graphics processor (GPU). In rare cases, the video processing chip fails, usually accompanied by artifacts before the image disappears completely.

⚠️ Warning: If you suspect a backlight or matrix malfunction, don't disassemble the TV yourself without experience. Xiaomi models use adhesive joints and brittle plumes that are easily damaged.

3. Resetting settings: when it helps

If Xiaomi TV responds to the remote (you can change the volume, change the channel), but the image is not, there is a high probability of a software failure, in which case the reset to the factory settings will help.

📌 How to Reset the Menu (If the TV is Partially Controlled):

1. On the remote, press Menu → Settings (cog).
2. Go to General. → Reset and update → Resetting settings.
3. Enter. PIN-code (default 0000 or 1234).
4. Confirm the reset.

📌 How to reset if the screen is not working:

1. Turn the TV off the socket.
2. On the remote, simultaneously press the Menu buttons. + Back (back).
3. Without releasing buttons, turn the TV on the network.
4. Hold the buttons for 10-15 seconds until the reset signal appears.

After the reset, the TV will restart. If the problem was in a software conflict (for example, after updating or installing an application), the image should appear.

Make sure the TV is connected to the internet (reconfigured to reconfigure)

Record your Mi Account details (if linked)

Prepare a remote with working batteries

Disable external devices (configures, flash drives)-->

⚠️ Attention: On Xiaomi Mi models TV Q1/Q2 Resetting also removes all installed apps and account data. If the TV is linked to the Mi Account, you will need to re-authorize after the reset.

4. Firmware update: bug fix

A black screen when sound is running can be caused by a malfunctioning firmware update or damage, especially for Xiaomi TVs that update automatically.

🔹 Update over the Internet (if the TV responds to the remote control):

1. Go to Settings → About TV → System Update.
2. Click Check for updates.
3. If a new version is available, install it.

🔹 Update through USB (If the screen is not working, the TV is on):

1. Download the latest firmware for your model from the official Xiaomi Support website.
2. Unpack the archive and copy the update.zip file to the flash drive (FAT32 format).
3. Put the flash drive in. USB-television-port.
4. On the remote, press Menu. + Volume Up and hold for 5 seconds to start the update mode.

If the TV doesn’t respond to the remote, but there is sound, try the forced update:

1. Turn the TV off the socket.
2. Put the flash drive in.
3. Press the Menu button on the remote and, without letting go, turn the TV on the network.
4. Hold the button for 10-20 seconds until the update process starts (you will hear the beeps).

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If the TV stops turning on after the update (no sound or image) it is a sign of a "brick" (breaking the firmware), in this case you will need to flash through the service port (JTAG) workshop.

5. Problems with motherboard and food

If all previous methods failed, and Xiaomi TV still only produces sound without images, the problem may lie in the motherboard or power supply.

🔧 Capacitors on board. Bloated or leaky capacitors are a common cause of black screens. This is especially true for TVs that have run 3.+ Signs of the year:

• The TV is not turned on the first time.
• The image appears 5-10 minutes after turning on.
• In the board area, you can hear a slight squeak or crackle.

🔧 Chip overheating. If the GPU or RAM gets overheated, the TV can turn on without an image:

1. Turn off the TV and let it cool for 1-2 hours.
2. Turn it on again. If the image comes up, but it's gone after 10 to 15 minutes, it's overheating.

🔧 Malfunction HDMI-If the TV does not show the image only when connected through the port HDMI, It works through other inputs (for example, AV or USB), problem in the port or controller HDMI. Decisions:

• Try another one. HDMI-TV-port.
• Update the firmware (sometimes bugs) HDMI Corrected in new versions).
• If the port is physically damaged, soldering or replacement is required.

⚠️ Attention: On Xiaomi Mi models TV A Pro and Mi TV P1 The power supply and the motherboard often come in the same module. If you are not an experienced electronics worker, do not try to repair them yourself - there is a high risk of damage to the board permanently.

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If the TV is turned on, there's sound, but the screen is flashing or flickering, which can be a sign of a malfunction of the backlight inverter. In a temporary solution: reduce the brightness of the screen in the settings to 70-80%, this will reduce the load on the inverter and prolong its operation until repair.

6. When to contact the service center

Not all breakdowns can be repaired on their own, but here are the signs you should consult a professional for:

🚨 The backlight does not work, but the image is visible when illuminated with a flashlight.

🚨 The TV is turned on with a delay (more than 1 minute) or turns off on its own.

🚨 Artifacts (strips, squares, distortions) appear on the screen before it goes out.

🚨 The TV does not respond to reset and is not updated through USB.

🚨 There are physical damage (cracks on the screen, dents on the body).

The cost of repair in the service depends on the problem:

• 💰 Replacement of backlights: 3,000 to 8,000 ₽ (diagonally).
• 💰 Maternity Board Repairs: 5,000 to 15,000 ₽.
• 💰 Replacement of the matrix: 50-70% of the cost of a new TV (often unprofitable).
• 💰 Diagnosis: usually free or up to 1,000 ₽.

📌 How to choose a service center:

• 🔍 Check reviews on Yandex.Maps or 2GIS.
• 📋 Check if you have experience with Xiaomi TVs (not all workshops are taken for Chinese equipment).
• 💸 Ask the cost of diagnosis and repair before the equipment is delivered.
• 📝 Require a check and a guarantee for work (minimum 3 months).

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If the TV is warranty (usually 1 year), contact the official Xiaomi service.

7 Prevention: How to avoid problems in the future

To ensure that the Xiaomi TV lasts a long time and does not lose the image, follow these recommendations:

🛡️ Protection against voltage surges:

• 🔌 Use a network filter or uninterruptible power supply (UPS).
• ⚡ Do not pull the plug out of the socket during a thunderstorm.

🛡️ Proper operation:

• 🔥 Do not place the TV near heat sources (batteries, cookstoves).
• 💦 Avoid high humidity (optimally 40–60%).
• 🧹 Regularly wipe the ventilation holes from dust (every 3-6 months).

🛡️ Updates and settings:

• 🔄 Do not interrupt the firmware update process.
• 📥 Install applications only from the official Mi store TV App Store.
• 🔧 Once every six months, do a cache reset: Settings → Annexes → Clear the cache.

🛡️ Connecting devices:

• 🎮 Use certified cables HDMI (especially for game consoles).
• 🔌 Do not connect or disable devices while the TV is running.

Compliance with these rules will reduce the risk of recurrence of an image problem by 70-80%.

FAQ: Frequent questions