Modern multimedia systems make it easy to stream content from a mobile device to a large screen, but users often face difficulties when pairing gadgets from different ecosystems. Owners of a bundle of Samsung Galaxy A51 and Xiaomi Mi TV or Redmi TV are no exception, since Android operating systems and the MIUI TV shell have their own interaction characteristics. For quality image and sound transfer, you need to choose the right synchronization method, which depends on your goals: mirroring the screen, watching video from the gallery or launching online cinemas.
The challenge is that standard data protocols can be implemented differently by the smartphone manufacturer and the TV platform developer. If you want to bring a game, presentation or movie to a large display, you will need a stable connection and the right network settings. In this article, we will take a detailed look at all the available connectivity options, from wireless technologies to physical interfaces, so you can choose the best option for your situation.
Before you start any manipulations, make sure that both devices are charged or connected to the power supply, as the process of transmitting a video stream can significantly consume the battery power of the smartphone.It is also worth checking the software versions, since outdated firmware often contains errors in wireless communication modules. Proper preparation will save you from most potential problems and ensure smooth operation of the system.
Device Preparation and Network Environment
The foundation of successful synchronization is the correct local network setup. Both devices, and Samsung A51 and Xiaomi TV, must be connected to the same Wi-Fi network. If your router supports dual-band mode, it is highly recommended to use a frequency of 5 GHz, as it provides the higher bandwidth necessary to transmit high-resolution video without delay.
In some cases, even when on the same network, devices may not see each other due to customer isolation settings or guest Wi-Fi mode. Make sure that the router does not prohibit data exchange between connected gadgets. It is also worth temporarily turning off mobile Internet on your smartphone so that the system does not try to use it to download content instead of a local transmission channel.
⚠️ Note: If your router distributes two networks with the same name (2.4 GHz and 5 GHz), make sure that the phone and TV are connected to one of them, rather than being distributed over different frequencies, as some older router models can block device detection between bands.
You can use the built-in network tools to diagnose the connection. On a Xiaomi TV, go to Settings → Network and check the connection status. On a Samsung smartphone, you can see the connection speed in the Wi-Fi menu. If the signal is weak, you better zoom in on the router or use a Wi-Fi repeater to improve the communication quality.
Wireless connection via built-in translator
The easiest and fastest way to display an image is to use the built-in Smart View feature, which is based on the Miracast protocol.This technology allows you to create a direct wireless connection between devices without the need for third-party applications or complex router configuration. Xiaomi TVs usually support this standard out of the box, making the process as simple as possible for the user.
To activate the feature on the Samsung A51 smartphone, you need to lower the top notification curtain and find the Smart View icon. If you don't see it on the first page, scroll through the list of available buttons to the left and click three dots or a plus to add a widget to the Quick Access panel. Once turned on, the phone will start scanning available displays in range.
- 📱 Make sure that the Xiaomi TV screen is active and in standby mode (often just turn on the TV is enough).
- 🔍 In the list of found devices on your smartphone, select the name of your TV, which usually matches the model or given name.
- ✅ On the TV screen, a request for connection permission may appear, which must be confirmed by the remote control.
Once you pair it successfully, the image from the smartphone screen will appear on the TV, and it's important to understand that when you use Miracast, it's the image from the screen that is transmitted, so if you flip the phone, the image on the TV will also flip if you don't turn on auto-orientation, and the quality of the picture depends on the power of the Wi-Fi signal and the load of the channel.
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To reduce latency when playing or watching dynamic video, close the background apps on your smartphone that may consume CPU traffic or resources.
Using Google Chromecast technology
Xiaomi TVs are powered by Android TV, which means built-in support for Google Cast (Chromecast) technology. Unlike Miracast, which broadcasts the entire screen, Chromecast allows you to run content directly on the TV, using the smartphone only as a remote control, which frees up the phone’s resources and provides more stable video playback in high resolution.
To work with this method, the Samsung A51 should have Google Play services installed, which is the default for all devices of the brand. Open the application from which you want to stream content, such as YouTube, Netflix or Google Photos. Find a broadcast icon that looks like a rectangle with Wi-Fi waves in the corner.
The connection process is as follows:
- Run a video or select a photo on your smartphone.
- Click on the Cast icon in the player.
- In the list that appears, select your Xiaomi TV.
- The video will start playing on the big screen, and the phone can be used for other tasks.
⚠️ Note: Chromecast only works within apps that have appropriate support. If you try to stream a video from a browser or file manager without the built-in Cast button, the method may not work without using the screen Translation feature in Google Home settings.
What to do if the TV is not found?
Connection through HDMI-cable
If the wireless connection is unstable or requires the transmission of the picture in maximum quality without compression, the best solution will be a wired connection. A51 portable USB Type-C, which supports video transmission technology, but for connecting to a standard video transmission system HDMI-The TV will require a special adapter.
You'll need an adapter. USB-C to HDMI. It is important to choose models that support video output, since not all charging cables transmit a video signal. HDMI-cable to the TV, you need to switch the signal source on TV to mode HDMI, port-of-use.
Advantages of the wired method:
- 🎥 Lack of latency, which is critical for gaming.
- 🔋 No load on the Wi-Fi network.
- ⚡ Possibility of simultaneous charging of the smartphone (if the adapter has an additional power port).
It’s worth noting that the Samsung A51 doesn’t support 4K image output via a USB 2.0 port, so the maximum quality will be limited to Full HD (1080p). However, for most tasks, this is quite enough. If the image doesn’t appear, check if the cable is tightly inserted, and try another HDMI port on the TV.
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Wired connection via USB-C to HDMI adapter guarantees the best picture quality and no delays, but requires the purchase of additional equipment.
Comparison of Connection Methods and Their Characteristics
The optimal way to connect depends on the specific tasks and conditions of use. Wireless methods are convenient for their simplicity and lack of unnecessary wires, but can suffer from interference. Wireless connections are more reliable, but limit the mobility of the user with the length of the cable. Below is a table to help determine the choice.
| Characteristics | Smart View (Miracast) | Google Cast | HDMI Cable |
|---|---|---|---|
| Image quality | Good (depends on Wi-Fi) | Excellent (up to 4K) | Maximum (no compression) |
| Delay (Latency) | Medium/High | Low. | Minimum |
| Phone battery consumption | High-pitched | Low. | Low (charging in) |
| Need for a router | Yes (or Wi-Fi Direct) | Yes. | No. |
Smart View is ideal for viewing photos or showing presentations, as you need to show exactly what is happening on the phone screen. To watch movies from online cinemas, it is better to use Google Cast, so that you do not discharge your phone and be able to take calls without interrupting the film. HDMI.
Solving common problems and errors
Even with the right setup, there may be disruptions. Often users complain of audio and video out of sync or intermittent connection breaks. If the picture is twitching or low resolution, try to reduce the network load by disconnecting other devices from Wi-Fi, or get closer to the router.
In case the Xiaomi TV doesn’t see the Samsung phone, try clearing the cache of the apps responsible for broadcasting. On the TV, go to Settings → Apps → All Apps, find Miracast or Wireless Display and select Clear Cache. On the smartphone, a similar procedure should be done for the Smart View or Link to Windows system application.
☑️ Diagnostics of connection problems
Sometimes a simple reset of communication modules solves the problem: turn on and off the Flight mode on your smartphone or completely reconnect the Wi-Fi connection. If nothing helps, resetting the network settings on your phone (Settings → General Settings → Reset → Network Settings → Reset) can eliminate software conflicts, but remember that this will remove stored Wi-Fi passwords.