Previous articleMissing sound on Xiaomi TV: what to do and how to return the sound

Did you play your favorite movie or broadcast a match, but instead of sound, silence? TV 4/4A/4S/5/5X/Q1/Q2/P1) It's more common than it seems, and it can be caused by both trivial settings and serious hardware failures, and in this article, we'll look at all the scenarios that we can think of, from simple checks to complex diagnostics that can bring sound back without going to the service center.

It's important to understand that the algorithm of actions depends on whether the sound is completely lost (including system signals) or only absent from certain sources (HDMI, Bluetooth, embedded applications). It also matters whether the problem was preceded by a firmware update, a voltage drop or mechanical impact. We structured the instructions so that you can quickly find a solution to your situation.

If you're not sure about your technical skills, take your time to disassemble the TV -- most problems are solved by software. Start at the first few points and move on to more sophisticated methods in a consistent manner.

1. Basic check: is the sound off or the regulator at zero?

As trivial as it sounds, 30 percent of the time, the problem is the basics. Before you dig deeper, follow these steps:

• 🔊 Check the volume level on the remote: press the Volume button + It's possible that the sound was accidentally muffled to zero or that the Mute mode was activated).
• 📺 Make sure you select the correct signal source: press Source or Input on the remote and select the active port (for example, HDMI 1, if the console is connected).
• 🔌 Check the connection of external devices: if the sound is lost while using the sound bar or soundbar, make sure that the cable Optical/HDMI ARC plugged S/PDIF or HDMI ARC TV-wise.

Pay special attention to the display on the remote: if you press Volume +/- the screen does not display the volume scale, the problem may be in the remote itself or in the control unit of the TV. Try using an alternative remote (for example, from a smartphone through the Mi Remote app) or buttons on the TV body.

2. The sound settings in the TV menu: what could have gone wrong

If the basic check didn't work, we'll go to the settings, and often the sound goes away after you update the firmware or reset it to the factory settings.

1. Click on the Settings remote) → Choose Sound (Sound).
2. Check the following parameters: 🔈 Sound Mode: Standard, not Silent or Night Mode). 🎵 Sound Output: Select TV Speakers (TV Speakers, if external devices are connected. 🔄 Auto Sound Switching: Turn off this option if the sound is lost when switching sources.

If you see a gray (inactive) Volume item in the Sound menu, this may indicate a hardware blockage of the audio path, in which case you go to the section about resetting or equipment diagnostics.

On Xiaomi TVs with Android TVs (such as Mi TV Q1/Q2), check the digital audio settings further:

1. Go to Settings → Display & Sound → Audio → Digital Audio Output.
2. Install Auto (PCM) instead of Dolby Digital or Passthrough – this often solves the problem of having no sound when connecting over HDMI.

An important point: if you are using HDMI-Splitter or switch, try connecting the device directly to the TV. Some budget splitters don't support Dolby Digital audio transmission.+ or DTS.

4. Settings reset: when it really helps

If the sound is gone after a firmware update or setting change, a factory reset can bring everything back to working order, but remember, it will remove all installed apps, accounts and personal settings.

How to perform the reset:

1. Open Settings → Device Preferences → Reset.
2. Select Factory Data Reset (Factory Reset).
3. Confirm the action by entering PIN-code (if installed).
4. Wait for the reboot (it will take 3-5 minutes).

Once reset, the TV will turn on in its original state. Don't miss the setup step: on the welcome screen, select a language, connect to Wi-Fi, and check the sound before installing the apps. If the sound comes up, the problem was the software settings.

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Before reset, take a picture of the list of installed apps in the Settings → Apps menu. This will help you quickly restore them after the reboot.

⚠️ Attention: On Xiaomi TVs with Android TV 9.0 and higher resets can block access to certain features (like Google Assistant) before re-authorizing with your Google account!

If the reset didn't work, the problem might be the damaged firmware, which would require you to manually reflash the TV, and you can read about that in the next section.

5. TV flashing: when it's the only way out

If the sound is lost after a failed update or the TV gives an error "No sound device found" when booting, flashing may be the only solution. USB-accumulator.

Instructions for Xiaomi Mi TV 4/4A/4S/5:

1. Download the official firmware for your model from the Xiaomi Support website. The file should have the.zip extension and weigh ~1-1.5 GB.
2. Prepare. USB-Driver: Format the flash drive into FAT32 (not NTFS!). Create an update folder (in lower case!) and place the downloaded firmware file in it.

Run the update.

• Insert the USB 2.0 port on your TV (usually located on the side).
• Go to Settings → About → System Update → Update via USB.
• Select the firmware file and confirm the installation.

It's 10 to 15 minutes. Don't turn off the TV or remove the flash drive until you fully restart! After you update, check the sound in the settings menu.

⚠️ Attention: Flip-through through ADB (Advanced method can lead to a blink (complete failure) of the TV, if the firmware is not chosen for your model. Use this method only if you are confident in your actions or follow official instructions Xiaomi.

6. Hardware malfunctions: when without repairs can not do

If none of the software methods worked, the problem is probably hardware, and here are the most common hardware reasons for missing audio on Xiaomi TVs:

• 🔊 Failure of speakers: physical damage to the membrane or break of contacts, often occurs after a TV drop or moisture is hit.
• 🔌 Problems with audio amplifier: the chip responsible for amplifying the sound may fail due to overheating or a voltage surge.
• 📶 Oxidation of contacts on the motherboard: especially important for TVs operated in high humidity conditions.
• 🔧 Malfunction HDMI-port: if the sound is not available only when connected via HDMI, Perhaps the connector itself or the controller on the board is damaged.

How to diagnose a hardware problem:

1. Check the speakers: connect external speakers or headphones to the TV via 3.5 mm or Bluetooth. If there's sound, the TV speakers are a problem.
2. Check the board: when the TV is turned off, remove the back cover and check if there are visual damages (blackened chips, swollen capacitors, burned tracks).
3. Call the circuits: If you have a multimeter, check the resistance on the speakers contacts (it should be 4-8 ohms).

Repairing hardware malfunctions requires special skills and tools. If you are not confident in your abilities, contact the Xiaomi service center or a proven master.

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If the TV is guaranteed, do not open it yourself - this will void the warranty obligations. Contact the authorized Xiaomi service center with a check and a warranty card.

7. Alternative methods of output of sound: if the speakers do not work

While the TV is being repaired or you're looking for a master, you can temporarily arrange the output of sound through external devices.

• 🎧 Bluetooth headphones or speakers: Turn on Bluetooth on your TV: Settings → Remote & Accessories → Add Accessory. Activate pairing mode on your headphones (usually hold the power button 5-10 seconds). Select the device from the list on TV.
• 🔌 Analog output (3.5 mm): If the TV has a headphone jack, plug in the active speakers or amplifier.
• 📡 Optical (TOSLINK) output: connect the optical cable to the sound bar or receiver. In the TV settings, select Sound Output → Optical.
• 🖥️ Sound output through HDMI on AV-Receiver: If you have a home theater, connect the TV to the receiver via HDMI ARC, and the receiver to the columns.