Xiaomi TVs (Mi TV, Redmi TV, Xiaomi TV A Pro) are known for bright screens with high contrast, but sometimes factory brightness settings are redundant. Too bright not only tires the eyes during long viewing, but also reduces the backlight resource, increasing power consumption. In this article, we will analyze all the current ways to reduce brightness, from basic settings through the remote control to hidden parameters for experienced users.
It’s important to understand that the brightness adjustment on Xiaomi Smart TVs depends on the model, the MIUI TV firmware version, and even the backlight type (LED, QLED, or OLED). We tested the instructions on the 2022-2026 models and took into account the features of the latest updates. If your TV is released before 2020, some menu items may differ, we will mention this too.
1. Basic brightness settings through the remote control
The easiest way is to use the standard settings menu. It is suitable for all Xiaomi models, including the budget Redmi TV A55 and the flagship Mi TV Q2 75.
- Turn on the TV and take a remote control (DU).
- Press the button Settings (cog) or Menu.
- Go to Settings → Display and sound → Picture.
- Find the Brightness slider – it’s usually at the top of the list.
- Using the buttons ← / → on the remote, reduce the value to a comfortable level (the recommended value for home use is 30–50%).
Note that in some firmware, brightness is adjusted from 0 to 100, and in others, from 0 to 50. OLED-screens (e.g., Mi) TV Master OLED) Factory brightness is often overestimated to 80-90%, which can cause pixels to burn out in static images.
Make sure the TV is on the network.|Use the original Xiaomi remote|Check the light level in the room.|Write down the current settings before the changes-->
If the brightness changes, try calibrating it with Contrast, the optimal ratio for most scenarios:
- 🌞 Daylight: brightness 60-70%, contrast 50-60%
- 🌙 Evening viewing: brightness 30-40%, contrast 40-50%
- 🎮 Games: brightness 50-60%, contrast 70-80% (for better detail)
Image modes: how to choose the optimal profile
Instead of manually adjusting the brightness, you can use pre-tuned image modes, which automatically adjust the brightness, contrast and color temperature for different scenarios, to activate them:
- Open the Settings menu → Display and sound → Picture.
- Select Image Mode (Picture Mode).
- Available options: 📺 Standard – Balance between brightness and naturalness (recommended for most users). 🎬 Movies – low brightness and warm tones, optimal for films in a dark room. 💡 Bright – maximum brightness and cold tones (not recommended for long-term use). 🎮 Gaming – increased brightness and contrast for dynamic scenes.
For energy saving and vision protection, Movie or Standard mode is best suited. Bright mode should only be used during the day in bright sunlight, as it significantly increases the load on the backlight.
Standard.|Cinema.|Bright|Playing|Own (manual setting)-->
| Regime. | Brightness (%) | Contrast (%) | Color temperature | Energy consumption |
|---|---|---|---|---|
| Standard. | 50–60 | 50–60 | Neutral. | Average. |
| Cinema. | 30–40 | 40–50 | Warm. | Low. |
| Bright | 80–100 | 70–80 | Cold. | High. |
| Playing | 60–70 | 70–80 | Neutral. | Above average |
If none of the pre-modes suit you, you can create a user profile.
- In the Image Mode menu, select User Mode.
- Manually adjust brightness, contrast, saturation and color temperature.
- Save the settings (in some models, you need to press OK on the remote).
3. Automatic brightness control (illumination sensor)
Many modern Xiaomi TVs (starting in 2021) are equipped with an ambient light sensor that automatically adjusts the brightness of the screen to the conditions in the room, a feature called Auto Brightness or Adaptive Brightness, to activate it:
- Go to Settings → Display and sound → Picture → Additional.
- Find the option of Auto Brightness or Light Sensor.
- Switch the slider to the position on.
Once activated, the TV will analyze the light level in the room and adjust the brightness every 5-10 seconds, which is especially useful if you watch TV in a room with changing lights (for example, when you sunset or turn on / off the chandelier).
⚠️ Note: On some models (Redmi) TV X50, Mi TV P1) The light sensor may not work properly in bright sunlight, making it brighter to maximum, so you'd better turn off the function and adjust the brightness manually.
If you don't have the AvtoBrightness option on the menu, your TV doesn't support it hardware. Check the model specifications on Xiaomi's official website or in the manual.
💡
To check the light sensor, cover it with your hand for 3-5 seconds, the brightness of the screen should temporarily decrease, and after removing the hand - return to the previous level.
4. Hidden settings for experienced users
If standard methods don't work, you can use a service menu or an engineering setting that allows you to control backlight more accurately, but you should change them with caution - incorrect values can worsen the image quality.
To open hidden settings on most Xiaomi TVs:
- Turn on the TV and go to the main menu.
- Consistently click on the remote: Menu → Settings → All Settings → Support → Service Menu (on some models, the path may differ: Settings → About TV → Service menu).
- Enter the password: 3308 or 1144 (for new models).
- In the service menu, find the Backlight or BL Control section - this is the backlight brightness adjustment.
⚠️ Warning: Changing the settings in the service menu can cause a warranty reset.If you are not sure about your actions, it is better to return factory settings via Reset in the same menu.
For Android models TV (Like Mi. TV Stick or Mi Box connected to TV, brightness can be adjusted by ADB-Connect to the device by command. USB and do it:
adb shell settings put system screen_brightness 50Where 50 is the desired brightness level (0 to 255).
5. Reduce brightness through the Mi Home app
If your Xiaomi TV is connected to the Mi Home or Google Home ecosystem, the brightness can be adjusted remotely via the mobile app, which is convenient if the remote is lost or malfunctioning.
- Install the Mi Home app (for iOS or Android).
- Sign in and add the TV to your device list (if not already added).
- Open the TV card in the app.
- Go to the Control section → Screen settings.
- Adjust the slider Brightness.
The Mi Home also has quick scenarios for changing brightness:
- 🌙 Night mode: automatically sets brightness of 30% and warm color temperature.
- 🌞 Daytime mode: brightness 70% and neutral tones.
- 🎬 Cinema: 40% brightness, high contrast.
The advantage of this method is that you can schedule automatic brightness changes, for example, you can program the TV to reduce the brightness to 30% every day at 22:00.
How to reset the brightness settings to factory?
6. Optimal brightness settings for different scenarios
Proper brightness not only protects vision, but also prolongs the life of the TV, and below are recommendations for situations based on tests and recommendations of ophthalmologists.
| Script | Brightness (%) | Contrast (%) | Color temperature | Notes |
|---|---|---|---|---|
| Watching movies in a dark room | 25–35 | 45–55 | Warm. | Use the Mode of the Movie |
| Day viewing (sunshine) | 60–80 | 60–70 | Neutral. | Close the curtains for better visibility |
| Games (console or cloud gaming) | 50–70 | 70–80 | Neutral/cold | Turn on the game mode. |
| Work with text (browser, documents) | 40–50 | 50–60 | Neutral. | Increase sharpness for better readability |
| Children (cartoons, educational programs) | 30–40 | 40–50 | Warm. | Limit viewing time to 1-2 hours |
For users with increased sensitivity to light (for example, migraines or dry eye syndrome), it is recommended that:
- 🔍 Use Read Mode (if available) with reduced brightness and blue light filter.
- 🕶️ Include night light in Android settings TV (Path: Settings → Screen. → Night light).
- ⏱️ Take breaks every 30-40 minutes of viewing.
💡
For models with OLED-screens (Mi) TV Master OLED) Avoid static images (channel logos, menu interface) at maximum brightness for longer than 2 hours – this can cause pixels to burn out.
7. Frequent problems and their solutions
Sometimes users are faced with the brightness not adjustable or reset after rebooting.
Problem 1: The brightness slider is inactive (shadowed in gray).
- 🔌 Check if the TV is on (some models block settings when working from backup power).
- 📺 Reboot the TV: Press the power button on the remote for 5-10 seconds.
- 🔄 Reset the image settings to factory (Settings) → Picture → Reset).
Problem 2: The brightness changes spontaneously.
- 🌓 Turn off the Auto Brightness function in the settings.
- 🕵️ Check if the light sensor is disturbed by light sources (for example, a desk lamp next to the TV).
- 📱 Update the TV firmware (Settings) → On TV. → Updating the system).
Problem 3: After the firmware update, the brightness settings were reset.
- 📋 Restore the settings manually or through a backup (if it was created).
- 🔍 Check if new image modes have been added to the menu.
- 📧 Contact Xiaomi via the official website if the problem persists.
⚠️ Warning: If after the change in brightness, the TV flickered or artifacts appeared on the screen (bands, dots), immediately return the factory settings.