Modern Smart TV Xiaomi offers a wide range of multimedia content options, turning the living room into a real entertainment center, but the easiest and fastest way to display images from a smartphone or tablet to a large screen is wireless connectivity. This allows you to show photos, run videos from unverified sources, or even play mobile games on a huge diagonal without using the same software. HDMI-cable.
The process of synchronizing devices in the ecosystem of Android TV and PatchWall is implemented intuitively, but often hidden in the depths of the menu or requires the activation of additional services. Users often face a situation where the function seems to be there, but does not work, or the phone simply does not see the TV. In this material, we will analyze in detail all available methods, from embedded protocols to third-party solutions.
You won’t need a deep technical knowledge to make it work, but understanding the principles of a local Wi-Fi network will be very useful. We’ll look at the standard operating system features, the capabilities of the Google Home application and the specific features of the PatchWall shell so you can choose the best option for your model.
Equipment preparation and network requirements
The foundation of a stable wireless video stream is a quality network connection. The first and most important rule is that your smartphone and Xiaomi TV must be connected to the same Wi-Fi network. If you have a dual-band router, make sure that both devices sit on the same frequency, preferably 5 GHz, as it provides higher bandwidth for high-resolution video.
Check the software's relevance on both devices. On your TV, you can do this by going to Settings → Device → System Update. Outdated versions of the firmware may contain bugs in the Mirecast or Chromecast module, leading to connection breaks or no picture at all.
If someone is actively downloading files through a torrent client or playing low-ping online games, the image quality may drop, and ideally the router should support Wi-Fi 5 (802.11ac) or newer at the time of broadcasting for comfortable 4K content transfer.
Broadcasting method via built-in Chromecast
Most modern Xiaomi TVs run Android TV, which has built-in support for Google Cast technology.This is the most reliable and high-quality way to transfer images, as it works at the system level and is optimized by Google itself.
Launch the app and find your TV on the list of available devices. The device will be displayed on the bottom menu with a button to Translate the screen, and the system will warn you of possible effects on battery consumption and sound quality, after which the image from the smartphone is fully copied to the TV screen, and the delay in this mode is minimal, but depends on the power of the router.
⚠️ Note: When using Chromecast to mirror the entire screen of a smartphone, sound can be transmitted with a small delay. For watching movies, it is better to use the Cast button inside the video hosting application itself, rather than the screen duplication function.
An important advantage of this method is that it supports high resolution and can control the TV directly from your phone. You can use your smartphone as a remote, stop playback or adjust volume. Google Cast automatically adjusts the bitrate of the video to the current network speed, preventing buffering.
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To reduce latency when playing, try prioritizing traffic in the router settings for MAC-The address of your TV (QoS function).
The Miracast (Wireless Display) protocol
If you don’t want to install additional apps or use devices that don’t support the Google ecosystem, Mirecast technology (some menus call it Wireless Display) is a standard developed by the Wi-Fi Alliance that allows you to transfer images directly, without the need for the Internet, although a router for the initial handshake of devices is usually needed.
On Xiaomi PatchWall TVs, this feature is often built into the system. You need to open a list of apps on your TV and find the Wireless Display or Miracast icon. Once launched, the screen will wait for connectivity. On an Android smartphone, this feature is called Translation, Smart View (Samsung) or Projection (Xiaomi, Huawei) and is in the notification curtain.
Unlike the Chromecast, Miracast creates a direct connection between devices (P2P), which theoretically reduces the load on the router. However, the stability of the connection here depends heavily on the Wi-Fi drivers of the module in your phone. Some budget models can show artifacts or desynchronization of sound.
☑️ Checking readiness for Miracast
Broadcast via Mi Remote and PatchWall
Owners of Xiaomi’s PatchWall-branded TVs have access to additional interaction tools. The built-in Mi Remote app (or its equivalent depending on the region) allows not only remote control, but also media content, especially for older models where Android TV can run slowly.
To connect, open an app on your smartphone and select your TV from the list of devices found. The remote interface often has a Translate button or screen icon. This method has proven to be a good way to display photos and videos from the gallery, since it uses native TV codecs for decoding, saving the phone resources.
It's worth noting that this is a limited method compared to the Chromecast system, which means you can't stream game interfaces or work documents, just media files, but it's the perfect way to quickly show photos to guests, and it doesn't require complex network settings.
| Method | Delay (Latency) | Image quality | Requirements |
|---|---|---|---|
| Chromecast Built-in | Low. | High (up to 4K HDR) | Google Home appendix |
| Mirecast | Medium | Depends on the router. | Support for Wi-Fi Direct |
| Mi Remote | Low. | Original file | Mi Remote appendix |
| AirPlay (for iOS) | Low. | High. | AirPlay 2 support on TV |
Connecting Apple Devices (AirPlay 2)
iPhone and iPad users often mistakenly believe that Apple’s ecosystem is incompatible with Xiaomi, but today’s TVs support AirPlay 2 at the software level, allowing you to stream screen, photos and videos from iOS devices without buying an expensive Apple TV.
To activate the feature, make sure that the TV has AirPlay support in its settings. It is usually in Settings → Network and Internet → AirPlay. On the iPhone, just open Control Point, press Screen Replay and select your TV. The image will appear instantly with vertical orientation.
AirPlay on Android TV is a feature that allows you to use your phone as a trackpad or keypad if the app supports this feature, and it also provides stream encryption, which is important when showing sensitive information. Video transmission quality is often higher than Miracast, thanks to better optimization of H.264 and H.265 codecs.
⚠️ Warning: If AirPlay is not active, check if the router is running Guest Network mode. Guest isolation prevents devices from seeing each other on the LAN.
Solving Connection Problems
Even if all instructions are followed, there can be technical difficulties, the most common problem is that the TV is not visible on the list of available devices, and in 90% of cases this is solved by restarting the router, since detection protocols (DLNA, SSDP) can “hang” in the network equipment of the provider or home router.
The second common scenario is that there's an image, but there's no sound, and that's because of the limitations of licensed content protection protocols (HDCP) or Bluetooth settings. If the sound is supposed to go to the TV but it's going to the phone, check the notification curtain for the audio output device. Sometimes switching the Wi-Fi frequency from 5 GHz to 2.4 GHz if the signal is too weak helps.
If the connection is constantly broken, try to assign statically. IP-address for the TV in the router settings. Dynamic change of address (DHCP) Sometimes it causes packet loss over long sessions, and make sure the TV is power-saving, which can interrupt background processes.
Secret setting for advanced users
To diagnose problems, you can use third-party Wi-Fi analyzer applications to check the signal level at the TV installation point. If the signal level is below -75 dBm, stable HD video broadcasting will not be possible, in which case a USB Wi-Fi adapter with an external antenna connected to the TV will help, if the model allows.