How to set up a Xiaomi 55-inch TV: a complete guide from connectivity to fine-tuning

Xiaomi’s 55-inch TVs are among the most popular in the brand’s lineup for their optimal value for money, quality and functionality. However, even such a technique requires the right initial setup to unlock the full potential of 4K HDR, built-in Android TV and Smart Home features. Many users face problems already at the connection stage: incorrectly displaying resolution, losing sound when connecting via HDMI ARC, or the TV does not find a 5 GHz Wi-Fi network.

In this article, we will not only discuss the basic setup of the Xiaomi Mi TV 55 (including the Mi TV 4S/4A/4X/5 Pro models), but also reveal the nuances that are not covered in standard instructions, such as how to avoid sound delay when using the sound bar, why the Game mode can spoil the picture in movies, and how to set up Google Assistant to manage a smart home through the TV, and pay special attention to solving typical problems, from the lack of images to errors when updating firmware.

1.Preparation for the first turn on: what to do before setting up

Before you plug your TV into the outlet, take a few critical steps to save you from power problems, cables, and even potential matrix damage.

• 🔌 Check the voltage in the outlet. - Xiaomi TV 55 requires stable 220-240 V. Use a surge-proof network filter if there are frequent voltage surges in your area.
• 📏 Distance to the wall. For models with Dolby Atmos (e.g. Mi). TV 5 Pro) leave at least 10 cm for air circulation, otherwise the speakers will sound muffled.
• 🔄 Update by air (OTA). If the TV is new, connect it to the Internet via Ethernet – so the first update will be faster and more stable than over Wi-Fi.
• 🛠️ Mounting on the wall, for models of weight >15 kg (e.g. Mi) TV Q2 55) use a bracket with a minimum weight reserve of 30 kg.

Pay special attention to the choice HDMI-cables, for transmission 4K@60Hz s HDR10+ You need a standard cable. HDMI 2.0 And then you have to go up and down, and if you put the label on the package, cheap cables can't handle the bandwidth, which can cause the image to break or there's no sound (PS5/Xbox Series X), use HDMI 2.1 support 120 Hz.

⚠️ Warning: Do not turn the TV on immediately after delivery in the cold season. +10°C, let the technician heat up to room temperature for 2-3 hours. Condensation inside the housing can cause a short circuit.

2. First Entry and Basic Configuration: Step-by-step instruction

Once connected to power, the Xiaomi 55 TV will automatically run the Initial Customization Wizard, and consider the key steps where users often make mistakes:

1. Language selection. There are no pitfalls here, but if you accidentally choose the wrong language, you can change it to Settings → Personal → Language and input.
2. Network connection: Priority is given to wired connection (Ethernet), especially if you plan to stream in 4K. Wi-Fi 5 GHz can "slow down" at a weak signal.
3. Mi. Sans will not be available for Mi Home, cloud services or some apps, and if you don’t have an account, register it in advance on your smartphone.
4. Geolocation setting: Specify the real region – the available channels and services depend on it (e.g. Netflix or YouTube have different content in some countries).

In the "Screen Adjustment" phase, the TV will suggest you choose the display mode, and here many people choose "Home Theater", but for most tasks, "Standard" is optimal - it retains natural colors without excessive saturation. Play "Game" mode only for consoles, since it turns off post-processing images, which degrades the quality of the films.

Check the voltage in the socket|Prepare. HDMI 2.0/2.1 cable|Download the Mi Remote app on your smartphone|Register for a Mi Account (if not)|Clear the space for the TV (ventilation!)-->

If the TV doesn’t find Wi-Fi, check:

• 🔄 Restart the router (turn off power for 30 seconds).
• 📶 Make sure the network is operating in the 2.4GHz band (some Xiaomi models) TV They do not support 5 GHz in the base firmware).
• 🔐 If used WPA3, Try switching to WPA2-PSK — This solves the problem of connection 80% of the time.

3. Image customization: how to achieve the perfect picture

Even with the factory settings, the Xiaomi 55 shows a good picture, but after calibration, the difference will be noticeable to the naked eye. The main parameters are hidden in the Settings menu → Display and sound → Image.

For fine-tuning, use YouTube test videos (such as those from RTINGS.com).

• 🎯 Gradient of gray: all shades from black to white should be distinguishable.
• 🟥 Color spots: on monochromatic fills (red, green, blue) should not be stripes or divorces.
• 👁️ Viewing angles: When viewing from the side, check if the colors are distorted (especially relevant for the viewing of the color). VA-matrix).

⚠️ Warning: If after calibrating the colors look unnatural, reset the image settings to factory and start over.Some Xiaomi models (e.g. Mi) TV 4X) Have a bug with saving user profiles after updating the firmware.

4.Sound optimization: from bass to Dolby Atmos

Xiaomi TV 55’s built-in speakers rarely satisfy audiophiles, but even they can be improved. Start with the Settings menu → Display and Sound → Sound:

• 🔊 Sound mode: for movies, choose "Cinema", for music - "Music", for news - "Speech".
• 🎛️ Equalizer: Increase 100Hz for bass and 10kHz for clarity of voices.
• 🔄 Volume normalization: Turn on if volume drops between channels or apps are annoying.
• 🎧 Headphone access: If you connect Bluetooth headphones, choose the aptX codec for better quality (not available on all models).

For models with Dolby Atmos support (e.g. Mi TV Q2 55):

1. Make sure that the source (such as Apple TV 4K or Xbox Series X) is transmitting the Dolby Digital+ signal.
2. In HDMI settings, enable Passthrough for the corresponding port.
3. In the audio menu, select "Dolby Atmos" as the output format.

If the sound is lost when switching sources, check:

• 🔌 Is the cable connected? HDMI ARC port-marked "ARC" TV-wise.
• 🔄 Whether it's on CEC (customized HDMI) — This allows you to control the sound panel with the remote control from the TV.
• 📶 If you use Bluetooth, reconnect the device – sometimes resetting the connection helps.

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To test Dolby Atmos, run a Dolby Atmos test video on YouTube or on the Netflix app (such as the 2013 Atmos version of Romeo and Juliet), and the Atmos icon should appear on the TV's audio menu.

5. Connecting external devices: consoles, sound panels, game consoles

Xiaomi 55 TVs have 2-3 HDMI ports, but not all are the same.

For game consoles:

• 🎮 Nana PS5 In the video settings, select "Resolution: 2160p" 120 Hz (if the TV supports).
• 🖥️ On Xbox Series X, enable Dolby Vision for Games (available from 2021).
• 🔄 If the image is "torn", try to turn off "VRR" (Variable Refresh Rate – Some Xiaomi models are not compatible with this feature.

When connecting the sound bar via HDMI ARC:

1. Use the High Speed HDMI cable (version 1.4 or higher).
2. In the settings of the TV, turn on HDMI-CEC and name the device (e.g., "Soundbar").
3. If the sound is late, adjust the synchronization in the audio bar menu (the option is "AV Sync" or "Lip Sync").

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For maximum performance in games, connect the console directly to the TV, rather than through a receiver or sound panel – this reduces input lag by 10-20 ms.

6.Set up Smart Features: Android TV, Google Assistant and Mi Home

Xiaomi TV 55 is powered by Android TV (or Google TV in new models), which opens up thousands of apps, but out of the box, the system can slow down due to background activity.

• 📱 Remove Unnecessary Applications: Go to Settings → Apps and uninstall pre-installed services you don’t use (such as Mi Video or Prime Video if you don’t have a subscription).
• 🔄 Cache Clearing: Select Storage from the same menu and clear the cache for Google Play Services and Android System WebView.
• 🛡️ Disabling Autostart: in Settings → Annexes → Special access → Auto-run disable background activity for unnecessary programs.
• 🔍 Voice search: Press the microphone button on the remote and say, for example, "Turn on Netflix" or "Show movies with Tom Cruise".

For integration with a smart home:

1. Install the Mi Home app on your smartphone and log in to the same account as you do on your TV.
2. In the settings of the TV go to Mi Home → Smart home and add devices (lamps, sockets, robot vacuum cleaner).
3. Set up scenes such as “Cinema” (turns off the lights, turns on the TV and closes the curtains).

Models from 2023 to 2026 (such as the Xiaomi TV A Pro 55) have introduced Matter, a new smart home standard that allows users to control devices from other brands (such as Philips Hue or Nanoleaf) directly from the TV’s remote.

⚠️ Warning: If after the firmware update, the smart home widgets on the home screen are missing, reset the Mi Home app settings in the Settings menu → Annexes → Mi Home → Warehouse → Drop it.

7. Update firmware and solve typical problems

Regular firmware updates fix bugs, add new features (like AV1 support for YouTube) and improve performance. Check the relevance of the version in Settings → About TV → System Update.

Refreshment methods:

• 🌐 By air (OTA): It's the easiest method, but it requires a stable Internet connection. If the upgrade is 0% hanging, check the network connection.
• 💾 Through USB: Download the firmware for your model from the official Xiaomi website. Unpack the archive and copy the file update.zip flash drive (format) FAT32). Insert the flash drive into the TV, go to Settings → On TV. → Update through USB.