Xiaomi smartphones today have incredible resolution screens, but sometimes you want to share content with friends or family on a big screen. Connecting Xiaomi to a TV via HDMI is the most reliable way to ensure stable signal transmission without the delays typical of wireless protocols. Unlike Wi-Fi broadcasts, cable connection ensures no lags, which is critical for gaming or watching movies in high bitrate.
The process of organizing a wired connection requires understanding the compatibility of your device's ports and having the right adapter. Many users mistakenly believe that any device is compatible with the right port. USB-The cable will allow you to display the image, but the video transmission technology works differently. MHL DisplayPort Alt Mode, which is supported by not all models of the budget and mid-segment.
In this article, we will discuss in detail all the nuances of physical connection, choice of accessories and software configuration of the MIUI or HyperOS system. You will learn why cheap adapters may not work, and how to check the video output support on your particular gadget before buying equipment.
Verification of technical support of the video output on a smartphone
The first and most important step is to verify your smartphone’s ability to transmit video via a charging port. Not all USB Type-C or Micro-USB connectors can broadcast a picture, as this requires additional contacts and controllers inside the device. Xiaomi flagship models, such as the Mi series or Xiaomi Pro, are most often equipped with a full-fledged USB 3.0/3.1 port with video output support.
Budget models, including the popular Redmi and Poco entry-level, often have USB 2.0 ports that can’t physically transmit video through cable. In such cases, trying to connect the adapter will only charge the device or transfer data, but the TV screen will remain black. For accurate definition of the specifications of your device, official documentation is recommended or use specialized diagnostic applications from the Google Play store.
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Use the app"CPU-Z" or"AIDA64", to find out the exact version USB-The protocol installed on your Xiaomi smartphone.
It’s also worth considering that even with a technical port, the manufacturer can programmatically restrict this feature in certain regions of sales. If you own a device imported from China, the probability of having full functionality is higher than in global versions, where multimedia opportunities to reduce the cost of the product are sometimes reduced.
Equipment and types of adapters required
You'll need an active signal converter, not just a cable, because you can't have a direct USB-HDMI connection without a digital protocol conversion. The main element of the chain will be an adapter that converts the signal from the phone's port to a format that your TV can understand. The market offers a lot of solutions, but it's important for Xiaomi owners to choose devices that support MHL (Mobile High-Definition Link) or Slimport standards.
If your smartphone is equipped with a USB Type-C connector and supports an alternative DisplayPort mode, you will need a quality Type-C to HDMI adapter. In the case of older models with a Micro-USB connector, a special MHL cable is required, which often requires a separate power source. Ignoring this requirement will lead to the fact that the phone will not have enough power to generate a video signal.
- 🔌 adapter USB Type-C on-- HDMI (for modern flagships Xiaomi).
- 📱 Cable MHL with additional power input (for devices with Micro-USB).
- ⚡ Power supply 5V/2A to power the adapter (if it does not have autonomous power supply).
- 📺 Standard. HDMI-cable of any length for connection to the TV.
Pay attention to the quality of the adapter assembly: cheap Chinese counterparts without branding often overheat and give artifacts in the image. A good adapter should have its own chip converter and, preferably, a metal case for better heat sink.
Step-by-step instructions for physical connection
The process of connecting a smartphone to a TV requires a certain sequence of actions to avoid voltage surges and software failures. First, you need to connect the adapter to the smartphone, and then connect it to the TV, although in most cases order is not critical when using quality accessories.
If you use an MHL adapter for a Micro-USB connector, be sure to connect the power cable from the charging unit to the appropriate port on the adapter.Without external power, the phone will try to power the converter on its own, which can lead to a quick battery drain or even a shutdown of the video output function by the protection system.
☑️ Preparation for connection
Once you physically connect all the elements, you need to select the right signal source on your TV screen. Use the TV remote, press the Input or Source button, and select the port you plugged the cable into (e.g. HDMI 1 or HDMI 2). If nothing happens automatically on your smartphone, go to the software part setup.
⚠️ Note: Do not remove the adapter from your smartphone while actively transmitting data or playing video, this can cause the GUI to freeze. MIUI.
Configure the image output in the MIUI and HyperOS system
In most cases, modern Xiaomi smartphones automatically recognize the connection of an external display and broadcast the image one to one. However, to fully work multimedia functions may require activation of Desktop mode or adjusting the resolution manually. Go to the settings menu, go to the Connected devices section and find the item associated with Cast or HDMI.
Some models support desktop mode, which turns the phone interface into a computer OS right on the TV screen, which is especially convenient for working with documents or a browser, since the mouse cursor can be emulated through the touchscreen of a smartphone.
Settings → About Phone → Press 7 times on "Version MIUI" → Additional settings → For developersThe developer menu should focus on minimum screen width and additional display simulations, although standard settings usually do better. If the image is stretched or cropped at the edges, adjust the zoom on the TV itself through the picture menu (Picture Size or Aspect Ratio).
Secrets of the Developer's Regime
Table of port and technology compatibility
To make it easier for you to navigate the types of connections, we have prepared a summary table that will help you determine which adapter you need for your Xiaomi model, based on the type of port and technology supported.
| Type of port | Technology | Do you need an external current? | 4K support |
|---|---|---|---|
| USB Type-C (USB 3.1) | DisplayPort Alt Mode | No (usually) | Yes. |
| USB Type-C (USB 2.0) | Not supported | N/D | No. |
| Micro-USB | MHL | Yes (required) | Depends on the version. |
| Micro-USB | Slimport | No. | No. |
As you can see from the table, owners of devices with a USB 2.0 port are in the least advantageous position, since wired video connection is almost impossible for them without complex technical modifications, in such cases, the only way out is to use wireless technologies such as Chromecast or Miracast, which are built into the shell of Xiaomi.
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Having a Type-C port doesn’t guarantee video support, be sure to check the chipset specification and version. USB-protocol.
Solving problems with display and sound
A common problem with connection is the lack of audio when the picture is there, and the audio continues to play through the speaker of the smartphone. This is solved in the audio output settings: after connecting the cable in the notification curtain or in the media menu, a choice of playback device should appear. Choose HDMI Audio or the name of your TV.
Another common difficulty is resolution mismatch: If the TV is old and doesn’t support 1920×1080 or 4K, the smartphone may not correctly determine its capabilities, in which case manually changing the screen resolution in the developer’s settings or through third-party display control apps helps.
⚠️ Attention: Use of low-quality long-term HDMI-cables (more than 5 meters) without a signal amplifier can cause the screen to flicker or complete lack of image.
It's also worth remembering. DRM-When attempting to play content from licensed online cinemas (Netflix, Disney)+) And you can see a black screen over a cable connection, instead of a video, and that's the normal behavior of a copy protection system, which blocks the display of protected content on external displays if the connection is not certified. HDCP.
Alternatives to wired connection
If wired HDMI connectivity has been made impossible by the lack of MHL or DisplayPort support, don’t despair. Xiaomi’s ecosystem offers excellent wireless alternatives that often run even more stable than cables in the home. The Wireless Display feature is built into the notification curtain control center.
To use this method, your TV must support Miracast technology or have built-in support for Xiaomi protocol. Just turn on Wi-Fi on both devices, find the TV in the list of available and click on the connection. The delay in games will be higher than cable, but for viewing photos and videos is ideal.
- 📡 Miracast technology is built into most Smart TV.
- 🏠 Xiaomi devices TV Sticks work as signal receivers.
- 🌐 Google Chromecast allows you to stream content from apps directly.
Owners of Xiaomi or Redmi TVs are the luckiest: the integration between smartphone and TV in the ecosystem allows you to transfer files and broadcast the screen in just one click through the Mi Remote app or built-in functionality of the system.