Integrating mobile devices into a single smart home ecosystem has long ceased to be a privilege for owners of one brand. Modern wireless data standards make it easy to stream content from a Realme smartphone to a Xiaomi big screen, despite the differences in software shells. Users no longer need to look for specific cables or complex adapters, since the basic functionality of Android TV and ColorOS (or Realme UI) is sharpened for seamless interaction.
The main challenge owners face is not the lack of technical capability, but the right way to connect for a specific task. Simple mirror display screens are suitable for displaying photos, but for viewing high-resolution video better use built-in streaming functions. Understanding the difference between Miracast and Google Cast protocols will help to avoid delays and dissynchronization of sound.
In this guide, we will take a detailed look at all the available ways of connecting, from regular system tools to the use of third-party applications and wired interfaces. You will learn how to configure the network for stable data transfer and what nuances should be considered when working with multimedia content. Proper configuration will ensure maximum image quality and comfortable use of your Xiaomi Mi TV or Android TV Box.
Network requirements and equipment preparation
The foundation of a successful wireless connection is a stable local area Wi-Fi network. For the Realme phone and Xiaomi TV to “see” each other, both devices must be connected to the same access point, which means that using 4G/5G mobile Internet on a smartphone with a Wi-Fi TV connected will not allow you to establish a connection for broadcasting.
Current standards require the use of 5 GHz to transmit heavy video streams at 4K resolution. If your router is dual-band, make sure that both devices are connected to a 5 GHz network, as an overloaded 2.4 GHz band can cause picture jerks and buffering.
⚠️ Note: If your router is broadcasting the same network with the same name (SSID) For both bands, try temporarily splitting them or force one of the devices to switch to 5GHz via router settings if there are stability issues.
You also need to check the software's relevance on both gadgets. Manufacturers regularly release updates that correct communication protocol errors. On TV, this can be done through the Settings menu → Device → About System → System Update, and on Realme smartphone via Settings → About Phone → Software Update.
☑️ Checking before connection
Use of the built-in Translation (Cast) function
The most versatile and commonly used method is the built-in translation feature based on the Google Cast protocol. In the Realme UI operating system, this tool can be called variously: Translation, Smart View, Wireless Projector or Screen Transfer. Xiaomi TVs running Android TV have built-in Chromecast, making them ideally compatible with this method.
To start the process, lower the notification curtain on your Realme smartphone and find the broadcast icon. If it is not available in quick access, go to Settings → Connection and Sharing → Broadcast. The system will start searching for available devices on the network. When your Xiaomi TV appears on the list, click on it to pair.
This method is ideal for viewing videos from gallery, YouTube, Netflix and other support services. It is important to note that when using Google Cast, you can continue to use the phone for other tasks without interrupting playback on the TV, as opposed to full screen mirroring.
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To reduce latency when streaming games, close the background apps on your phone that consume traffic, such as cloud storage or torrents.
The quality of the connection depends on the power of the Wi-Fi signal. If the TV is connected via a LAN cable and the phone is connected via Wi-Fi, stability will be higher, but make sure that both devices are on the same subnet, and the router does not include client isolation (AP Isolation).
Miracast wireless display technology
Unlike Google Cast, Miracast technology creates a direct connection between devices, often bypassing a router (Wi-Fi Direct technology). On Xiaomi TVs, this feature can be built into the “Miracast” or “Wireless Screen” app, which must be manually run before searching on the phone.
On Realme smartphones, Miracast search is often combined with the broadcast menu, but sometimes requires a separate turn on in the settings. When you connect through Miracast, you have a full mirroring of the screen: everything you do on the phone is displayed on the TV, which is useful for showing the interface of applications that do not support Cast, or for games.
But it has its own peculiarities: the screen of the smartphone must be turned on, which leads to faster battery discharge, and the resolution of the broadcast image is limited by the capabilities of the phone, not the TV, although the zoom is automatic.
| Parameter | Google Cast | Miracast |
|---|---|---|
| Router dependency | Required. | Not required (Wi-Fi Direct) |
| Impact on the phone battery | Minimum | High. |
| Image quality | Up to 4K HDR | Depends on the signal. |
| Management | Phone as remote control | Full mirroring |
Intermediary applications for expanding functionality
Staff tools don't always work perfectly, especially if you want to transfer specific file formats or access a TV's file system, and in these cases, third-party apps available on the Google Play Market come to the rescue, and one of the most popular solutions is the Video & TV Cast app or Web Video Caster.
These programs allow you to stream videos from websites that do not have a built-in Cast button, as well as transfer local video files, music and photos. The principle of operation is simple: you install the application on both the Realme phone and the Xiaomi TV (via the built-in app store). TV), Then you tie them together. QR-code IP-address.
Another powerful tool is the Google Home app, which allows you to manage media content on Android TVs and Chromecasts, and you can not only stream the screen, but also configure groups of devices for multiroom audio or use the phone as a remote control.
What to do if the app can’t see the TV?
For users interested in deeper control, there is the option of using the DLNA protocol. Many file managers on Realme support this feature, allowing you to send video directly to the built-in player of the TV, ensuring the best decoding quality with the help of a TV box.
Wired connection through HDMI-adapter
When wireless connectivity is impossible due to poor signal or maximum stability and minimal latency (for example, for gaming), the only correct solution is wired connectivity. Realme smartphones equipped with a USB Type-C port require a special Type-C to HDMI adapter.
It’s important to understand that not all Realme models support USB image output.MHL or DisplayPort Alt Mode functionality needs to be hardware implemented in the phone’s CPU and power controller.Flagship models typically support this feature, while budget segments may not have that capability.
To connect, simply insert the adapter into the phone's charging socket and the adapter itself into the HDMI cable that goes to the TV. The TV automatically detects a new signal source. You only have to select the appropriate input (HDMI 1, HDMI 2, etc.) through the Xiaomi remote's Logins menu.
⚠️ Note: When using cheap adapters without additional power, you may flicker the screen or no signal).
The advantage of this method is the lack of compression of the video stream, which ensures that the image is transmitted in native resolution without compression artifacts characteristic of Wi-Fi transmission. HDMI.
Configure permission and frequency of update
After successfully connecting, whether wireless or wired, it is important to make sure that the image output settings match the characteristics of your TV.Incorrectly exposed resolution can lead to a picture stretching or black fields around the edges of the screen. On Realme, these settings are usually found in the Settings menu → Connection and Sharing → Broadcast → Settings (when active).
Modern Xiaomi TVs support HDR10 and Dolby Vision. If your Realme phone also supports these standards, make sure that the display settings activate Automatic mode or select the appropriate color profile, which will unlock the full potential of the TV matrix.
Frame refresh rate (hertz) also plays a role.For movies, the standard is 24 or 60Hz, whereas for console or PC games streamed over a phone, 120Hz may be required. HDMI-cable and port version of such capacity.
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Optimal quality is achieved when the phone output settings (resolution and frequency) match the native characteristics of the TV matrix.
If you notice that the interface on the TV looks blurry, try to change the zoom in the phone settings or force the resolution 1920×1080 or 3840×2160 depending on the TV model.
Addressing common problems
Despite the standardization of processes, users may face difficulties, and one of the common problems is that the phone can't see the TV, and 90 percent of the time, it's done by restarting the router and checking that both devices are on the same subnet. VPN on a smartphone that can mask the local IP-address.
Another common complaint is that you can desynchronize your sound and image, which is a classic sign of a lack of Wi-Fi bandwidth, try turning off other devices that consume traffic, or move your router closer to the viewing area, and you can also have a problem with the audio codec settings on your TV.
If there is an image but no sound, check the audio output settings in the broadcast menu on your phone. Sometimes the sound continues to go through the phone's speaker rather than being transmitted to TV. In this case, you need to select the audio output device from the broadcast control menu (notification curtain).
⚠️ Warning: Antivirus programs or firewalls on your phone can block ports needed to detect devices on your local network.
In case of persistent crashes when using Miracast, try clearing the cache of the Translation or Wireless Display system application in the phone's app settings. This will delete temporary files that may have been corrupted.