Modern Xiaomi smartphones have powerful displays and performance to play content in high resolution, but sometimes the screen of the gadget is not enough for comfortable watching movies or presentation. Connecting the device to a large TV screen via an HDMI interface is one of the most reliable ways to broadcast an image, providing minimal latency and stable signal without the hangings typical of wireless technologies. Unlike the Mi Cast or Chromecast, a wired connection does not depend on the speed of the Wi-Fi router and the quality of the Internet connection, making it an ideal choice for gaming or watching heavy video in 4K.
However, owners of Xiaomi devices often face nuances, since not all models support direct video output through the charging port. To successfully complete the task, you may need not only a standard cable, but also a special adapter or adapter that supports the DisplayPort Alt Mode protocol. In this article, we will discuss in detail the compatibility of various models, necessary accessories and algorithms of actions that are guaranteed to help bring the image from your phone to the big screen.
Before you start buying hardware, it’s important to understand what type of connection is available for your particular smartphone model, as manufacturers often change the technical specifications of ports across different generations of devices.We’ll look at options for both flagship lines with USB 3.0/3.1 support, and for more budget-friendly solutions where alternative video transmission methods may be needed.Proper preparation at the initial stage will save you time and money to buy unnecessary accessories.
Port compatibility check and video output support
The first and most critical step is to determine the type of connector and its functionality, since the physical presence of the port is a significant part of the process. USB Type-C does not guarantee video transmission support. Many budget and mid-budget Xiaomi and Redmi smartphones are equipped with standard ports. USB 2.0, which are designed exclusively for charging and data transfer, but do not have the necessary contacts to display the image on external displays. At the same time, the flagship models of the Mi and Xiaomi series (starting with the Mi 10 and later, as well as some versions of the Black Shark) are often equipped with ports. USB 3.1 or 3.2, which supports DisplayPort Alt Mode.
To check the specifications of your device, you can use specialized applications from the Google Play store, such as AIDA64 or CPU-Z, which provide detailed information about the configuration of the hardware. In the system information section, you should find a line describing the USB version or video output support, where the presence of the DP or DisplayPort marking will mean that you can connect directly through the adapter. If the specification says only USB 2.0, the standard method with the adapter will not work, and you will need to use alternative solutions, which will be discussed below.
⚠️ Warning: Attempting to use cheap adapters without first checking protocol support can lead to overheating of the smartphone charging port or damage to the power controller.
Also, even with technical support, some MIUI or HyperOS shells can block video output at the software level in certain regions or firmware versions. Device owners should check the official specifications on the manufacturer's website or in the user manual, where often small print indicates support for the Video Out feature. Ignoring this step can lead to the purchase of unnecessary equipment that will be incompatible with your gadget.
Equipment required: cables and adapters
To establish a wired connection, you will need a set of equipment, the composition of which depends on the results of the compatibility check conducted in the previous step. If your smartphone supports video output, the main element will be a USB-C to HDMI adapter, which converts the digital signal from the phone to a format that is understandable to the TV. It is important to choose quality accessories from proven brands such as Baseus, Ugreen or Anker, since cheap counterparts often do not withstand the required bandwidth for video transmission in 1080p or 4K resolution.
The second component is a standard HDMI cable that connects at one end to the adapter and the other to the free port on the TV. The cable length can vary from 1 to 5 meters depending on the distance between the devices, but for high-resolution (4K at 60 Hz) cables longer than 3 meters without an active signal amplifier are not recommended.
- 🔋 Additional power: Some adapters have a port to connect charging, which is useful for long sessions so that the smartphone battery does not run out quickly.
The power issue deserves special attention, since active video transmission consumes a significant amount of power. If your adapter is equipped with an additional USB port for power, it is strongly recommended to connect a charger to it to avoid a situation where the smartphone will run out at the most inappropriate moment of the film. In addition, stable power can prevent possible failures in the operation of the video output drivers, which sometimes occur when working from the built-in battery.
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When buying an adapter, pay attention to support for 4K@60Hz resolution, even if your phone does not support this resolution yet – this will provide a margin of compatibility for future devices.
Step-by-step instructions for connecting via cable
The process of physically connecting a Xiaomi smartphone to a TV via an HDMI interface is quite simple and does not require deep technical knowledge, but following the sequence of actions will help avoid common errors. First, you need to connect the adapter to the charging port of the smartphone, making sure that the connection is dense and the connector has entered before the click. After that, one end of the HDMI cable is inserted into the adapter and the other into the corresponding port on the back or side panel of the TV, it is desirable to remember the port number (for example, HDMI 1 or HDMI 2).
The next step is to switch the signal source on the TV using the remote control. You need to press the Input button, Source or the arrow square icon to open the login selection menu, and select the port to which the cable was connected. In most cases, modern Xiaomi TVs and smartphones with support for Plug and Play will automatically determine the connection and display the image in a few seconds without the need for additional settings.
☑️ Xiaomi’s Algorithm for Connecting to TV
If the image appears but the sound continues to play through the phone speaker, you need to manually change the audio output settings. To do this, you should lower the notification curtain on the smartphone, find the icon of the media being played and select the audio output device by switching it from Dynamic to HDMI or the name of your TV model. In some cases, the audio settings may be in the Settings menu → Sound and vibration → Output, where you need to force the external audio output.
⚠️ Attention: Do not pull the cable HDMI from a running adapter abruptly, this can lead to a software failure of the display drivers requiring a smartphone reboot.
Customization of image and sound in MIUI and HyperOS
Once the connection is successfully established, MIUI or HyperOS can offer multiple external display modes that can be customized for maximum comfort. Depending on the shell version, when you connect the cable on the smartphone screen, you may notice a mode of operation where you can access the options "Mirror" (full screen copy) or "Extended desktop" (analogue of Desktop Mode). Mirror is useful for demonstrating the application interface, whereas the desktop mode allows you to use the smartphone as a touchpad, and the TV to display an optimized interface with windows.
To fine-tune your image settings, go to Settings → Connections and Sharing → Transcription or a similar section where you can change the output resolution. If the TV supports HDR or high refresh rate, make sure the settings select the appropriate resolution, such as 1920×1080 or 3840×2160, and 60Hz for smooth cursor and video. Incorrectly selected settings can cause the image to be cropped around the edges or look stretched.
| Parameter | Recommended value | Description |
|---|---|---|
| Permission | 1920x1080 / 4K | Depends on TV support |
| Frequency of personnel | 60 Hz | Provides smooth interface |
| Sound format | Stereo / PCM | The most compatible format |
| Screen mode | Mirroring | Full copy of the smartphone screen |
It is important to note that some applications, such as Netflix, Disney+ or Amazon Prime Video, may block the output of protected content through third-party adapters due to HDCP policy. In such cases, a black screen may be displayed on the TV with a message about an error of access rights, although the smartphone interface will be visible. This restriction is software-based and only costs the use of certified cables or official docking stations, if provided by the manufacturer.
What do you do if there's no sound?
Alternative methods for models without HDMI support
Owners of Xiaomi smartphones with ports USB 2.0 that does not support video output should not despair, as there are alternative ways of connecting using digital data transfer. USB-A hub that supports Ethernet or WiFi, but this method is complicated to set up and requires additional software to be installed on both devices. A simpler and more affordable option is to use DisplayLink technology, which requires installing a special driver on the smartphone and having a compatible adapter with the DisplayLink chip.
To implement the connection through DisplayLink, you need to download the DisplayLink Presenter application from the Google Play store and connect a compatible one. USB-Smartphone adapter. Once the application is launched and the necessary permissions are granted to access the screen, the system will create a virtual display that will be broadcast through the Internet. USB-port to the adapter and then to the TV, and this method bypasses the hardware limitations of the ports. USB 2.0, however, it puts additional strain on the smartphone’s processor, which can lead to device heating and reduced performance in games.
- 📲 DisplayLink application: necessary for software processing of video stream on devices without hardware support.
- 🔌 Specialized adapter: Must contain a DisplayLink chip (usually specified in product specifications).
- ⚙️ Android resolutions: you need to give access to screen recording and system settings for the driver to work.
Another option is to use wireless HDMI-Transmitters that connect to the port HDMI TVs and receive a signal over Wi-Fi Direct from a smartphone, but this method already applies to wireless technology and can have delays. If you need a cable connection for stability, then the method with DisplayLink remains the only working solution for low-end models of Redmi and Poco entry-level.
⚠️ Note: When using software broadcasting methods (DisplayLink), the smartphone battery will discharge much faster, so it is recommended to keep the device on charge.
Troubleshooting and troubleshooting
Despite the apparent simplicity of the process, users may encounter a number of typical problems, such as a lack of signal, low resolution or periodic connection breaks. If the TV writes "No signal", first check the integrity of the HDMI cable and try to switch it to another port on the TV, as some ports may be faulty or have poor contact.It is also worth making sure that the adapter is connected tightly and the port does not get dust or pile, which often happens with active use of a smartphone.
If there is an image but it twitches or has a low resolution, the problem may lie in the insufficient bandwidth of the cable or the adapter itself. Cheap cables longer than 2 meters are often unable to transmit a Full HD or 4K signal without loss, so replacing the cable with a shorter and better (certified Premium High Speed) often solves the problem.
If the audio is transmitted with a delay or distortion, check the sound codec settings in the Settings for developers (if enabled), or try to change the output format in the TV sound settings. Sometimes a conflict of formats (for example, trying to transfer Dolby Digital through a simple stereo cable) leads to no sound, and switching to a PCM or Stereo format eliminates the malfunction. In extreme cases, resetting network settings and smartphone connections can help.
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90% of connectivity problems are solved by replacing the HDMI cable with a better one or reconnecting the adapter to a different USB/TV port.