Modern smart TVs from Xiaomi and Mi TV offer users a huge multimedia opportunity, turning the living room into a real cinema. However, smartphone screens are often the main source of content, and the desire to bring your favorite video, photos or game to a large display arises for many owners of equipment. Fortunately, the MIUI ecosystem and the Android TV operating system provide built-in tools for wireless connection without having to buy additional cables.
There are several core image technologies that are supported out of the box, most notably Miracast, which allows you to completely duplicate your smartphone screen to your TV in real time, and Google Cast (Chromecast built-in), which is ideal for streaming video from apps, and the proprietary Mi Drop or Cast feature for fast file transfer, depending on your specific method of choosing whether you want to play mobile games on a large screen or just watch a movie from an online cinema.
Before you start setting up, it is critical to make sure that both devices are on the same LAN.The Wi-Fi router speed must be at least 5 GHz to transfer video to 4K without delay.If your router is dual-band, make sure that both the phone and the TV are connected to the same frequency (usually 5 GHz), as working at different frequencies can lead to devices simply "not seeing" each other in the list of available gadgets.
Basic equipment and network training
Successful connectivity depends on the stability of your home network. Before you go to the settings in the menu, you need to conduct a connection review. Make sure your router supports 802.11ac or Wi-Fi 5/6 standards, as older models may not cope with high-quality streaming, causing sound and image to be out of sync.
Check the firmware version on your Mi TV. Manufacturers regularly release updates to improve the stability of the Wi-Fi module and broadcast protocols. If the software is outdated, the wireless display function may not work correctly or at all. You can update through the system settings menu by selecting "About System" and running update checks.
Also worth paying attention to is router power saving settings. Some routers have AP client isolation, which prevents devices within the network from communicating with each other. To work Translation, this option must be turned off, otherwise the phone will not physically be able to send a video stream to the TV, even if you are on the same network.
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Use a guest Wi-Fi network only if the client isolation is turned off, otherwise the devices will not find each other.
- 📶 Make sure that both devices are connected to one SSID (router.
- 🔄 Check that the router does not include “Isolation of access points» (AP Isolation).
- 📡 For broadcasting 4K It is advisable to use the 5 GHz range to avoid jerks.
- 🔌 Restart your router if the list of available devices does not show for more than 30 seconds.
Use of the built-in Translation (Miracast) function
The most versatile way that works on most Xiaomi and Redmi smartphones is the Translation (or Wireless Monitor) feature, which is based on the Miracast standard and allows you to mirror the contents of your phone’s screen one-to-one, which means that if you open a browser, gallery or game, the image will instantly appear on your TV.
To activate the process on the Mi TV, you often don’t need to run individual apps, just enough to keep the TV on. However, some models may require you to open the Wireless or Wi-Fi Display app in the Android TV app menu to put the TV in standby mode. On your smartphone, open the notification curtain and find the Translation icon (sometimes hidden in the button editing menu).
☑️ Checking before connection
Once you start the search, the phone will start scanning the available devices. When your Mi TV name appears on the list, click on it. The TV screen may have a request for confirmation of connection, it must be coordinated by the remote control. From now on, the phone screen will duplicate. If the image is stretched, check the aspect ratio settings in the TV menu by selecting Screen size or 16:9 mode.
⚠️ Note: Miracast doesn't automatically lock your phone, but the screen can go out to save power, which will interrupt the broadcast. In the Translation settings, the phone often has the option to "Keep the screen on" - activate it.
Broadcasting via Google Home and Chromecast
If the built-in Translation feature is unstable or you want to stream content from specific apps (YouTube, Netflix, Movie Search), it is better to use the Google Cast protocol. Xiaomi TVs have built-in Chromecast support, which makes this method preferable for watching videos, since the load falls on the TV rather than the phone.
To manage your broadcasts and set up your device, make sure your smartphone has Google Home, which lets you find and manage devices on the network. Open the app, find your TV in the list of devices, and click the "Cast my screen" button, a method that often provides a more stable connection and better sound synchronization than a standard Miracast.
It’s important to note the difference in work: when streaming through Google Home, you can roll the app on your phone or even lock it (depending on the source app) and the video on the TV will continue to go. This is not possible with pure screen mirroring, where the phone must remain active.
- 📺 Open the Google Home app on your smartphone.
- 📡 Choose your Mi. TV list of available devices.
- ▶️ Click on “Translate Screen” for full mirroring.
- 🎬 Or use the “Cast” button inside apps (YouTube, Twitch) to run videos.
Why is the sound delayed?
Third-party applications for empowerment
Staffing is sometimes not enough, especially if you want to stream content from apps that block screen recording (such as some streaming services due to DRM protection) or if standard protocols don’t work.
One of the most popular solutions is a bundle of AirScreen or AirPin apps on your TV and their respective clients on your phone. These programs create a virtual receiver that emulates AirPlay protocols (for iPhone) or improves Miracast compatibility. Install the app on your TV through a Google Play search on Android TV, launch it and follow the instructions on the screen.
Another powerful tool is the LocalCast app or BubbleUPnP. They allow you to stream local video files stored in your phone’s memory directly to your TV, bypassing the entire screen mirroring process, which reduces the load on your smartphone’s processor and saves battery life, since the phone acts only as a remote control.
| Annex | Type | Platform TV | Substantive function |
|---|---|---|---|
| AirScreen | Receiver | Android TV | Support for AirPlay and Miracast |
| LocalCast | Player/Caste | Any (with Chromecast) | Translation of local files |
| Web Video Caster | Browser/Caste | Anybody. | Broadcasting videos from websites |
| Mi Remote | remote | Android TV | Management and basic broadcasting |
Configure permission and frequency of update
The quality of the picture when wirelessly connected depends on the resolution parameters chosen. By default, the system chooses the optimal settings, but sometimes there is a need for manual adjustment, especially if you connect an old TV or, conversely, a monitor with a non-standard aspect ratio.
In the phone settings, under the "Translation" or "Wireless display", you can often find a menu of additional options. Here you can change the resolution (for example, from 1920×1080 to 1280×720) and frame rates. Decreasing the resolution can significantly improve the smoothness of the image if you notice "freeze" or jiggle the picture while playing or watching video.
Also, you should consider that some applications can force the orientation of the screen to change. If the phone does not turn the image on the TV, check whether autorotation is blocked in the system. In rare cases, restarting the broadcast service helps: turn off the function in the notification curtain and turn it on again.
⚠️ Attention: Maximum resolution setting 4K low-light (1-2 Dividing will lead to constant buffering. Force the quality in the broadcast settings to Full HD (1080p) steady-work.
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Connection stability is more important than maximum resolution. Better a clear picture of 720p without jerks than a jiggy 4K.
Solving Common Connection Problems
Despite the simplicity of the technology, users can face a number of common problems, the most common of which is that the phone simply does not see the TV in the list of available devices. 90% of the time, this is solved by checking the network: make sure that the devices are not on different subnets (for example, one in the guest room, another in the main one) and that the router has turned off customer isolation.
The second problem is to de-synchronize sound and video, and if actors' lips are not moving in the right rhythm, try lowering the bitrate in the settings or rebooting the router, and turning off Bluetooth on the phone also helps, as working in the 2.4 GHz band can interfere with the Wi-Fi signal used to transmit video.
If there's an image but no sound, check your Android audio output settings. Sometimes the sound continues to go through the phone's speaker even when the picture is on the TV. In the notification curtain, when you're livestreaming, you often have a button to select the audio output device -- switch it to Mi TV or an external audio system.
- 🔍 Reboot both devices (TV and phone) – this resets the cache of network services.
- 📡 Turn it off. VPN on a smartphone, as it changes the network gateway and hides local devices.
- 🔋 Turn off the power saving mode on the phone, it can limit background data transfer.
- 📶 Get closer to the router if the phone’s Wi-Fi signal is weak.