How to Connect Xiaomi Phone to a TV via HDMI: The Complete Guide

Xiaomi smartphones today have the highest quality screens, but nothing beats a full-fledged TV to watch content on a big screen. Connecting a mobile device to an external display gives you access to games with maximum detail, allows you to show photo albums to guests or watch movies in theatrical format. Using a wired connection provides stable signal transmission without delay, which is especially important for dynamic scenes and interactive applications.

Connecting Android devices to your TV through HDMI-The interface requires certain technical conditions that are not always obvious to the average user, and unlike wireless technology, the cable method ensures that there is no compression of the image and loss of sound quality. However, to successfully display the image, it is necessary to take into account the compatibility of ports, the version of the data transmission standard and the availability of the necessary adapters.

In this guide, we will take a look at all aspects of connecting Xiaomi and Redmi smartphones to TVs of various brands, learn how to choose the right adapter, what settings to activate in the MIUI system and what to do if the image does not appear.

Technical requirements and port compatibility

Before you buy a cable or adapter, you need to make sure your Xiaomi smartphone is technically capable of transmitting video through the charging connector.Not all models support the USB-C to HDMI standard (often called Alt Mode). Budget devices often have ports limited only to data transfer and charging, making direct connectivity impossible without special compression technologies.

The key option is support for the MHL (Mobile High-Definition Link) or Slimport protocol. flagship models of the Xiaomi Mi series, Xiaomi 11/12/13/14 and some models of the Redmi Note Pro series usually come with a full-fledged USB 3.1 or USB 3.2 port with video output. Owners of simpler models will have to look for alternative solutions or use wireless methods, since the physical port will not be able to transmit a video stream.

It is important to distinguish between types of connectors, because it depends on the choice of adapter. Modern smartphones use a USB Type-C connector, while older models can have a Micro-USB. For the latter, video output support is extremely rare and requires specific active adapters with additional power.

• 🔌 USB Type-C: Standard for modern smartphones, supports video transmission with appropriate hardware support.
• 📺 HDMI (Full Size: Standard connector on TVs, requires an adapter from the phone.
• ⚡ Power Delivery: Fast charging technology often needed for active adapters.

Equipment and choice of adapter

To implement the connection, you will need not just a cable, but a whole chain of devices if your TV does not have a built-in USB-C port (which is extremely rare). The main element will be a USB-C to HDMI adapter. These devices are passive (just change the pattern) and active (contain a signal conversion chip).

Note the bandwidth of the cable. To transmit images at 1920×1080 resolution at 60 Hz, HDMI 1.4 cable will do. If you plan to broadcast 4K content, you need an HDMI 2.0 or higher cable. Using a cheap cable can lead to a screen blink or no signal at all.

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When buying an adapter, choose models with an additional USB port for power connection. The smartphone may not pull the energy-intensive video transfer process and shut down if the adapter is not externally powered.

Also worth considering is the docking station, which is a device that connects to a phone and provides multiple ports at once: HDMI, USB for mouse/keyboard and a charging port, which makes Xiaomi's smartphone look like a computer, which is extremely convenient for working with documents on a large screen.

Step-by-step connection instruction

The process of physically connecting devices is simple enough, but requires following the correct sequence of actions to avoid recognition problems. First connect the USB-C to HDMI adapter to the charging connector of your Xiaomi smartphone. Make sure the connection is tight and full.

Then connect the HDMI cable to the adapter and to the free port on the TV. Remember the port number (e.g. HDMI 1 or HDMI 2), this will be needed to adjust the signal source. If your adapter has a port for additional power, connect the charger to it.

After you're physically connected, grab the remote from your TV and press the source selection button (often referred to as Source, Input, or the arrow square icon). In the menu that appears, select the appropriate HDMI port to which you've connected the cable. The image from your smartphone screen should automatically duplicate on your TV.

⚠️ Warning: If the smartphone screen goes out after you connect, but nothing appears on the TV, the adapter may be power-strapped. Connect the external charge to the power port on the adapter.

Customization of image and sound in MIUI

Once successfully connected, MIUI can offer multiple modes of operation. In some cases, Mi Cast mode or simple screen duplication is activated. For optimal quality, go to the display settings. Go to the Settings menu → Connection and Sharing → Broadcast (or a similar path in your firmware version).

You can adjust the output resolution here. If the TV supports 4K, make sure that the smartphone settings are the appropriate resolution, not 1080p. Also, pay attention to the orientation of the screen. When connecting to the TV, it is most convenient to use automatic rotation, so that when you turn the phone, the picture on the TV also changes orientation.

As for sound, it should also be transmitted via HDMI by default. If the sound is only coming from your phone, check the media settings. In some applications (for example, YouTube or Netflix), when you connect the cable, the interface may change, offering a separate playback control panel.

• 🎨 Color Transmission: In the TV settings, select Game or PC mode to minimize input delays.
• 🔊 Audio format: Make sure that the audio settings have the format chosen. PCM Dolby Digital, if your audio system supports them.
• 📐 Scaling: If the picture is not full screen, use the "Just Scan" or "16:9" function in the TV menu.

Desktop Mode and Multimedia Opportunities

Xiaomi smartphones with powerful hardware when connected to a large screen can offer a mode similar to the desktop environment, which allows you to open application windows, use the mouse and keyboard, turning the phone into a full-fledged workstation, this is especially true for Xiaomi Mi models and flagship Xiaomi 13/14.

In multimedia terms, cable connectivity gives you the edge in bitrate. Unlike Wi-Fi broadcasting, where quality is compressed for speed, HDMI transmits the original data stream, which means you can watch the video in the highest available quality without compression and buffering artifacts.

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Using a wired connection is the only way to play mobile games on a TV with minimal latency (input lag), which is critical for shooters and racing.

However, keep in mind the heat: When the video signal is actively transmitted and simultaneously charged (if the adapter is powering the phone), the processor can heat up more than usual, it is recommended to ensure good ventilation of the smartphone or remove the case during long sessions of use.

Problem Solving and Lack of Signal

The most common problem is the lack of signal ("No Signal"). This can be caused by several factors. First, check if your particular phone supports video output. As mentioned earlier, many Redmi and Poco budget models do not have this feature at the hardware level, in which case no settings will help.

Second, the problem may lie in HDCP (Digital Content Protection): If you're trying to run secure content (like an online movie theater movie) through an untested adapter, the screen may go out or an error message will appear. Use certified cables and adapters.

⚠️ Note: Some apps (such as banking or streaming services) may block image output through the HDMI In this case, you'll see a black screen when the sound is working.

If there is an image but no sound, check the audio settings in the Sound and Vibration section. Sometimes the system doesn't switch audio output automatically. Also try rebooting both devices with the cable already connected.