Previous articleMissing sound on Xiaomi TV: how to return the sound yourself

You've turned on your favorite TV show, but instead of dialogue, silence? Or Xiaomi TV suddenly stopped playing sound when you switch channels? This problem is more common than you think, from trivial setup failures to hardware malfunctions. The good news is that 80 percent of the time, you can get sound back without going to the service center.

In this article, we’ll look at all the possible causes of sound loss on Xiaomi TVs (including Mi TV 4/5, Redmi Smart TV, Mi TV Q1/Q2, and more) and give step-by-step instructions for diagnosing and troubleshooting. Start with the simplest solutions — you may not even have to dig into the settings!

If the sound is lost after updating the firmware, connecting new devices (for example, soundbar or headphones) or mechanical impact (fall, hit) – the algorithm of actions will be different. We will consider each scenario separately so that you do not waste time on unnecessary manipulations.

1. Checking basic settings: 3 steps to deep diagnosis

Before you commit a breakdown, make sure that the problem is not in the basic settings, which will take no more than a minute, but often solve the problem:

• 🔊 Volume level: Press the Volume button + It's probably just a dimmed sound to zero (especially if you have kids or pets in the house).
• 🎧 Connected devices: Check if Bluetooth audio is active or HDMI ARC. The TV could automatically switch to an external sound source (earphones, soundbar) and disconnect all devices via Bluetooth and physically disconnect the cables. HDMI/optics.
• 🔄 Reboot the TV: Pull the power cord out of the socket for 30 seconds, then turn the TV on again. This will reset the temporary disruptions in the audio drivers.

If you don't get the sound after this manipulation, move on to the next section, and pay particular attention to the HDMI ARC item: many users have been wondering for months why the sound is only going through the soundbar, not through the TV speakers.

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

Often the sound is lost due to a malfunction in the software settings. Go to the menu of the TV and check the following parameters:

1. Sound Mode: Go to Settings → Sound → Sound Mode. Make sure you choose Standard or Custom, not No Sound (some models have this mode for night viewing).
2. Audio Output: In the same section, look for Out Audio or HDMI ARC. If you have an External Speaker or HDMI ARC, change to Inbuilt Speakers.
3. Equalizer: Reset the equalizer to factory settings (Reset the sound settings at the bottom of the menu). Sometimes users accidentally reset all frequencies, making the sound inaudible.

On the Mi TV Q1/Q2 and Redmi Smart TV X, there's an extra Dolby Audio option. If it's on but your content doesn't support that format, there may be no sound. Try turning it off.

3.Problems with HDMI ARC and external devices

If you have connected to the TV soundbar, receiver or AV-via HDMI ARC Or an optical cable, the sound could go to an external device, and even if you physically turned off the cable, the settings on the TV could still prioritize the external audio output.

How to return sound to built-in speakers:

1. Disable all cables from HDMI ARC, Optical (TOSLINK) and 3.5mm Audio Out ports.
2. Go to Settings → Sound → Audio output and select Embedded speakers.
3. If the HDMI ARC is active (lit in green), turn it off.
4. Reboot the TV.

On some models (for example, Mi TV 5 Pro) there is a bug: after connecting the device through HDMI ARC, the TV “forgets” about the built-in speakers even after the cable is turned off, in which case resetting the sound settings will help (see section 5).

Hardware checks: speakers, cables, ports

If the software settings are fine, but there's no sound, it's time to check the hardware.

• 🔌 Power speakers: On some models (e.g. Redmi Smart) TV X55) If the TV fell or was taken apart, the train might have come off, sign that the sound is only from one speaker or is completely absent.
• 🎛️ Audio connectors: Check the 3.5mm Audio Out port (if any) for damage, sometimes dust or metal shavings get inside, causing a circuit to close.
• 🔊 Speaker test: Connect external speakers or headphones to the TV via 3.5mm or Bluetooth. If there's sound, there's a problem with the TV speakers. If there's no audio chip, there's a faulty audio chip.

You can use the service menu to check the speakers. On the remote, press sequentially:

Menu → Settings → All Settings → Device Preferences → About → Press 5 times on “Model TV”

In the menu that opens, select Audio Test. If the speakers don't make sound when you test them, they're faulty or disabled at the hardware level.

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If the TV fell, check not only the speakers, but also the integrity of the body around them.

5. Resetting: When nothing helps

If the previous steps didn't work, try resetting the TV settings, which will return all the sound parameters to factory values and eliminate software failures.

There are two options for resetting:

Start with a soft reset. If it doesn't work, do a hard reset. Use the hardware reset only as a last resort: it erases the firmware, and the TV will have to be refashioned via USB.

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Before reset, record or photograph your current network settings (Wi-Fi password) and accounts (Mi Account, Netflix, etc.) so you don’t re-enter them.

6. firmware update: if the sound disappeared after the update

A common cause of loss of sound is a failed firmware update, such as the upgrade to MIUI TV 3.0, when many Mi TV 4S users complained about the lack of sound in some apps (YouTube, Netflix), the decision being to roll back to the previous version or wait for a patch.

How to update/roll back the firmware:

1. Check the current version: Settings → About TV → Software version.
2. If an update is available, install it: Settings → Software Update → Check for updates.
3. If the sound is gone after the update, try to roll back: Download the old firmware from the official Xiaomi Support website (select the TV model). ZIP-archive and copy the file update.zip flash drive (format) FAT32). Put the flash drive in. USB-port of the TV and start the update manually: Settings → Update of the PO → Update through USB.

⚠️ Warning: Don't interrupt the upgrade process! If the TV freezes during the installation phase, it can only be restored via Fastboot (you will need a PC and a special cable).

7. When to contact the service: signs of hardware breakdown

If you've tried all the ways, but the sound never came, the problem is probably the hardware.

• 🔇 Sound is not available in all sources (TV, HDMI, USB, Bluetooth, including service menu.
• 🔊 One or more speakers make wheezing, crackling or not working at all.
• 💥 The TV fell, was hit or liquid hit.
• 🔌 On the motherboard, you can see swollen capacitors or traces of oxidation (if you disassembled the case).

The average cost of audio repair on Xiaomi TV:

⚠️ Warning: If the TV is warranty, don't disassemble it yourself! Opening the case will void warranty obligations. Contact the authorized Xiaomi service center (list available on mi.com).

FAQ: Frequent questions about the sound on Xiaomi TV