Modern Xiaomi TVs with Android TV or PatchWall offer a wide range of media capabilities, but users often find it difficult to display images from a smartphone or laptop. Screen broadcasting is not just a duplicate image, but a complex process of encoding a video stream that requires proper networking settings. Many tech owners mistakenly believe that it is enough to press a button, but ignoring the nuances of Wi-Fi connection often leads to dissynchronization of sound and image.
In this article, we will take a closer look at all the available streaming options, including the standard Miracast and Google Cast protocols, and Apple-specific applications. Understanding wireless interfaces will allow you to enjoy high-resolution movies without delay. We will look at both the system’s standard tools and third-party solutions for cases where standard methods do not work.
Special attention should be paid to the firmware version of your TV, as the algorithms of network modules can vary depending on the year of release of the Mi TV or Mi Box. For stable broadcasting in 4K, you need the router to support the Wi-Fi 5 (AC) standard or later, and the devices are in the zone of confident reception of the signal. Let’s move to the practical part of the setup.
Equipment preparation and network requirements
Before you start configuring the software part, you need to make sure that your hardware environment meets the minimum requirements for transmitting a high-definition video stream. Wireless network is a critical link in this chain: if the router is overloaded or far from the receiver, the picture quality will suffer. The ideal scenario is to connect both devices to the same access point in the 5 GHz band.
Check that your Xiaomi TV and smartphone (or tablet) are connected to the same local network. Often routers broadcast two networks with similar names (for example, "Home" and "Home" and "Home" are connected to the same local network "Home_5G"), If the devices are diluted at different frequencies, they may not be able to see each other for local data transfers, and it is also worth updating the router's firmware, since older versions of the microcode may not properly handle the multicast traffic used by broadcast protocols.
It is important to consider the power of the transmitter. If you plan to stream content from your laptop through a browser, make sure that it is not in power saving mode, which can limit the operation of the Wi-Fi module. For Mi TV Stick or Box TVs, it is recommended to use an HDMI extender so that the device does not overheat and lose communication with the router due to the shielding of the signal by the TV body.
Use of the built-in Chromecast (Google Cast) function
Most Xiaomi TVs are Android TV based, which implies the presence of built-in technology Google Cast. This is the most stable and energy-efficient way to transfer content, since the TV itself downloads video stream from the Internet, receiving from the phone only the command “what and where to play”.
To start the broadcast, open an app that supports Cast (such as YouTube, Netflix, Google Photos or Chrome browser). Find the wave rectangle icon in the corner, which is the universal broadcast symbol. Once clicked, the system will suggest a list of available devices on the network; select your Mi TV or Mi Box. If the device is not found, check the permissions for the Google Home app on your smartphone.
⚠️ Note: When using Google Cast, video quality is automatically adjusted depending on Internet speed. If the image “crumbles”, try to reduce the quality in the settings of the source application itself, not the router.
The advantage of this method is the ability to control playback from the phone: you can pause, rewind or change the volume without using the TV remote. In addition, this protocol supports the transmission of sound to external audio systems via the TV, if they are connected by optics or HDMI ARC.
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If the Cast icon doesn’t appear in the app, make sure that the same Google accounts are used on your smartphone and TV, although this isn’t always a requirement for basic broadcasting.
Screen Duplication via Miracast (Wi-Fi Direct)
When you want to bring to the big screen exactly what is happening on the display of the smartphone (settings menu, games, browser without Cast support), Miracast technology is used. In the Xiaomi ecosystem, this feature is often called “Translation” or “Wireless display.” Unlike Chromecast, here the image is encoded in real time by the phone processor and transmitted by video stream, which puts a strain on the battery and network.
To activate the mode on a Xiaomi TV with a PatchWall shell or Android TV, you often don’t need to run a separate application – it’s enough to turn the TV on. On Xiaomi smartphones (MIUI), you need to open the notification curtain and find the “Translation” or “Cast” button. On other brands, the path may be different: Settings → Connections → Smart View (Samsung) or Connect to a projector (pure Android).
The connection process can take anywhere from 5 to 15 seconds. At handshake, devices exchange encryption and negotiating codec keys. If you see a black screen or a message saying "I couldn't connect," try restarting the Wi-Fi module on both devices. Miracast is interference-sensitive, so it's better to reduce the distance between the router and the devices.
☑️ Checklist of Miracast diagnostics
Broadcast from Apple devices (AirPlay on Xiaomi)
iPhone and iPad owners may face difficulties, as native support for AirPlay 2 appeared on Xiaomi TVs relatively recently. If your Mi TV model is released after 2019, the likelihood of having built-in support is high. Otherwise, you will need to install third-party software. You can check for the feature in the settings section of the TV by finding the item "AirPlay" or "Apple HomeKit".
If there is no built-in support, the solution is to install a reciprocating app from the Google Play Store on your TV, popular options being AirScreen or Receiver for AirPlay. Once installed, the TV emulates the behavior of an Apple device, becoming visible to the iPhone in the Screen Replay menu.
When connecting an iPhone to a Xiaomi TV via AirPlay, it is important to consider the orientation of the screen. Unlike Android, iOS can block image rotation in some applications. This is not critical to view photos and videos from the gallery, but for games it may be necessary to block orientation in the iOS control center. The quality of transmission through AirPlay is usually higher than through Miracast, thanks to the optimization of Apple codecs.
Why can AirPlay be delayed?
Specifics of working with the PatchWall shell
Xiaomi TVs, which come with PatchWall, have a unique menu structure that can hide standard Android features. In some regions and firmware versions, the broadcast button is taken out in a separate application or called by a long press of the "Menu" button on the remote. Users are often lost without finding the usual Android TV interface.
PatchWall's streaming feature is often integrated into the top of the quick access menu. If you can't find it, try installing the Mi Remote app on your smartphone, which can offer a streaming feature as part of the ecosystem. It's also worth noting that PatchWall aggressively manages memory and can shut down background processes that receive video streams unless it's authorized.
For stable operation in the PatchWall environment, it is recommended to disable automatic system updates if you notice that after the update, DLNA or Cast functions are lost. Sometimes new versions of the software change security policies, blocking local connections, in such cases, resetting network settings or factory resetting of the TV helps.
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The PatchWall shell can hide standard Android settings.If you're a power user, consider installing a launcher with a pure Android TV for more flexible networking management.
Solving problems with delays and image quality
Even with a perfect setup, users may encounter artifacts such as audio and video desynchronization, squares in an image, or a complete disconnect. buffering is the main enemy of wireless broadcasting. If a router simultaneously distributes the Internet to other devices (torrents, downloads), the channel bandwidth may not be enough for a 4K HDR video stream.
A common problem is the mismatch in frame rate. The TV can run in 60 Hz, and the phone tries to broadcast 30 Hz or 50 Hz, which causes jerks. In the settings of the Xiaomi TV, you should force the image mode "Game" or "Sport", which reduces post-processing and reduces input lag.
If the problem persists, try changing your Wi-Fi channel. Neighboring routers can jam your signal. Switching to a free channel in the 5GHz band (for example, 36, 40, 44) often works wonders. Also make sure that the TV does not run heavy background applications that consume RAM.
| Problem. | Probable cause | Decision |
|---|---|---|
| Black screen, there's sound. | DRM Protection (HDCP) | Use the Cast-enabled app without screen duplication |
| Severe delay (lag) | Wi-Fi channel overload | Switch to 5 GHz or bring devices closer together |
| TV not visible on the list | Different subnets or AP Isolation | Check router settings, disable customer isolation |
| Low resolution picture | A weak signal or an old router | Get closer to the router, update the firmware TV |
Alternative methods and third-party applications
If the regular funds fail, third-party solutions come to the rescue. Web Video Caster allows you to stream video from your phone's browser directly to your TV's built-in player, avoiding heavy screen duplication, and it's a great way to watch videos from sites that don't have official apps.
For gamers wanting to play on the big screen, there are apps like Steam Link or Moonlight that require a client to be installed on a PC and a server on a Xiaomi TV. They use a local network to stream images from a computer, providing minimal latency not available with standard Miracast methods.
⚠️ Note: Installation of unknowns APK-The files on the TV can lead to unstable system operation. download applications only from the official Google Play Store or verified sources.
Also worth mentioning is the protocol. DLNA. Although it is considered outdated, many media players on Xiaomi still see files from a computer or other devices perfectly. NAS-It's not a real-time screen broadcast, but a convenient way to view photos and videos from the local network.