Modern smartphones of the line Xiaomi Redmi Smartphones have powerful screens and processors capable of playing high-definition content. However, even the highest-quality phone display can't match the image size of a large TV. Users often wonder how to stream videos, photos, or games to a widescreen using a wireless connection. This is especially true for Smart TV owners who want to eliminate unnecessary cables and enjoy multimedia in maximum comfort.
There are several proven ways to establish a connection between a mobile device and a TV using standards Wi-Fi Direct and streaming technologies. Built-in shell features MIUI While some provide convenient tools for this, sometimes third-party software is required. It's important to understand that connection quality directly depends on the stability of your home network and the power of your router. In this article, we'll cover each method in detail so you can choose the most appropriate one for your situation.
Before you begin setup, make sure both devices are turned on and in good working order. Wireless synchronization It requires minimal preparation, but ignoring basic rules can result in devices not recognizing each other. We'll cover both standard usage scenarios and specific settings for different TV models.
Preparing equipment and a Wi-Fi network
The foundation of a successful connection is the proper organization of the local network. Both devices – the Xiaomi Redmi smartphone and the TV – must be connected to the same Wi-Fi network. If your router broadcasts signals on 2.4 GHz and 5 GHz frequencies with different network names, make sure your devices are connected to the same SSID. In some cases, routers automatically redirect clients between bands, but for stable video streaming, it's best to use a single logical network.
Check your phone's power saving settings. System Android in the shell MIUI may aggressively limit background app activity, which can cause connection drops while streaming. Go to Battery settings and ensure that the streaming system services or the app you're using are set to "Unrestricted."
- 📶 Make sure your Wi-Fi signal is strong and the distance between your router and TV is within reasonable limits.
- 🔋 Charge your phone or connect it to a power source, as screen mirroring uses a lot of power.
- 📺 Update your TV software to the latest version to avoid protocol compatibility issues.
- 🔄 Restart your router if your network is unstable or the list of available devices is not displayed correctly.
Sometimes antivirus programs or built-in firewalls on your router can block ports needed to detect devices on the local network. If you have complex security settings, try temporarily disabling client isolation (AP Isolation) in the router settings. This will allow smartphones and TVs to "see" each other.
⚠️ Note: When using a guest Wi-Fi network, devices are often isolated from each other for security reasons. To mirror your screen, be sure to connect your phone and TV to the main network.
Connection stability also depends on airwave congestion. If there are many neighboring routers operating on the same channel, interference may occur. In this case, it might be worth changing the broadcast channel in your router settings or using the 5 GHz band, which is less susceptible to interference.
Broadcast via the built-in "Cast" function
The easiest and most common way to display an image from a smartphone Xiaomi Redmi to the TV screen - using the system's "Broadcast" (or "Wireless Monitor") function. This technology is based on the standard Miracast, which is supported by most modern Smart TVs. No additional software installation is required to get started, as all necessary components are already built into the operating system.
To activate the mode, pull down the notification shade and find the "Broadcast" icon. If it's not visible on the screen, tap the edit button (usually a pencil or three dots) and add the "Broadcast" widget to your active controls. Once enabled, the feature will automatically search for available signal receivers on your local network.
Once your TV appears in the list of available devices, tap its name. A connection permission prompt may appear on the TV screen, which you'll need to confirm with your remote control. After this, the entire image from your phone will be copied to the big screen.
- 📱 Open the control menu and select "Broadcast".
- 📺 Wait until your TV's name appears in the list.
- 🔗 Click on the device to start synchronization.
- 🖥️ Confirm the connection on the TV screen if prompted.
It's important to note that when using Miracast, your phone mirrors exactly what's on the screen. If you lock your phone or minimize the app, the image on your TV will also change or disappear. To save battery, you can rotate your phone horizontally to fill the entire TV screen if the content supports widescreen display.
☑️ Pre-broadcast check
Some TV models require manual activation of the signal reception mode. This is usually done through the signal source menu (Source or Input) or in the network settings under "Screen Mirroring," "Wireless Display," or "Miracast." Without active standby mode, the TV may not respond to the smartphone's request.
Using the Mi Remote app for control
Smartphone owners Xiaomi And Redmi have a unique advantage - a built-in application Mi RemoteWhile its primary function is to control your TV via IR or Wi-Fi, it also allows you to stream media content. This is especially convenient if you want to control playback without being distracted by your phone screen, or if standard screencasting is experiencing lag.
To work via Wi-Fi, your TV must support the control protocol or have a corresponding partner app installed. After adding your TV to the Mi Remote app, a "Cast" button or a media file icon will often appear in the remote's interface. By tapping it, you can select photos, videos, or music from your phone's memory to play on the TV.
This method differs from Miracast in that the phone acts as a controller, while the TV downloads and decodes the file over the network (DLNA technology). This reduces the load on the smartphone's battery and allows you to use the phone for other tasks while watching.
- 📲 Launch the Mi Remote app on your smartphone.
- 📡 Add your TV by following the on-screen instructions.
- 🎬 Press the media streaming button in the remote control interface.
- 📂 Select the desired file from your device's memory to play.
The advantage of this approach is the ability to control playback (pause, rewind, and volume) directly from the app interface. Furthermore, picture quality is often higher, as the TV uses its own decoders, which can be more powerful than mobile devices.
Why doesn't Mi Remote detect the TV?
If the automatic search doesn't yield any results, try adding the device manually. You'll need to know the TV's IP address or select the model from the list. Also, make sure network control is enabled on the TV (often called DLNA or Remote Control).
Please note that the app's functionality may vary depending on the region and firmware version. MIUIIn some cases, full functionality may require installing a plugin or updating the app itself through the store. GetApps or Google Play.
Broadcasting via video service apps (YouTube, Netflix)
The most popular use case for a wireless connection is watching videos via streaming services. Applications YouTube, Netflix, IVI and others use the technology Google Cast (Chromecast built-in), which works differently than system screencasting. Here, the phone simply sends a command to the TV, providing a link to the video stream, and then handles the rest of the download and playback of the TV itself.
To get started, open the video service app on your smartphone. In the upper or lower right corner of the interface, look for the distinctive rectangle icon with Wi-Fi waves in the corner. Tapping this icon will start searching for available devices. Select your TV from the list, and the video will instantly start playing on the big screen.
The main advantage of this method is the highest image stability and quality, up to 4K HDR, without the jerks and lags typical of mirroring. Furthermore, the phone can be used for typing, searching for other videos, or even turning off the screen without interrupting your TV viewing.
| Parameter | System broadcast (Miracast) | Broadcast from the app (Cast) |
|---|---|---|
| Load on the phone | High (encodes video) | Low (control only) |
| Image quality | Depends on Wi-Fi signal | Maximum (stream from server) |
| Option to turn off the screen | No (the image goes dark) | Yes (video continues) |
| Using the phone | Limited | Complete freedom of action |
For example, to stream from YouTube, the TV does not necessarily need to have the YouTube app running; it will receive the stream directly from the Internet.
⚠️ Note: Some video services block streaming of protected content (DRM) via system screen mirroring (Miracast), displaying a black screen with sound. In such cases, use only the built-in cast button within the app.
If the cast button doesn't appear, check for app updates. Also, make sure you're not using a VPN on your phone, as this can change your virtual address and interfere with device detection on your local network.
Troubleshooting connection issues
Despite the simplicity of the technology, users often encounter situations where their phone can't see the TV or the connection constantly drops. One of the most common causes is the use of different subnets. Some routers create separate virtual networks for guests or IoT devices, isolated from the main network where the smartphone is located.
Another common issue is outdated Wi-Fi module drivers or software failures in the discovery services. In such cases, a complete reset of network settings helps. On the phone Xiaomi This can be done by going to Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and BluetoothPlease note that this action will delete saved Wi-Fi passwords.
If the problem lies in codec or protocol incompatibility, try using third-party media server applications such as Web Video Caster or BubbleUPnPThey can stream content even to TVs that don't support standard Xiaomi protocols.
- 🔌 Restart your router, phone, and TV (unplug them from the power outlet for 10 seconds).
- 📡 Make sure both devices are connected to 2.4 GHz or 5 GHz Wi-Fi (the same).
- 🛡️ Disable VPN and proxy servers during setup.
- 🔄 Update the YouTube app or your phone's system software.
Sometimes antivirus software on your router or phone blocks ports needed for the protocol SSDP (Simple Service Discovery Protocol), which is responsible for device discovery. Try temporarily disabling the protection to see if it's causing the problem.
In rare cases, the issue may be with the date and time settings. If the clocks on your phone and TV are significantly out of sync, security protocols may be preventing the connection. Make sure both devices are set to automatically detect the time via the network.
Comparison of methods and selection of the optimal option
The choice of connection method depends on your specific needs. If you need to show a presentation, a photo album, or play a mobile game on a big screen, the system's "Miracast" feature is the best choice, as it mirrors all actions in real time. However, for long-term movie viewing, this method is inefficient due to its high power consumption.
For watching videos from online cinemas, the built-in Cast feature in apps is the undisputed leader. It provides the best quality and doesn't overload your smartphone. If your TV isn't a Smart TV but has an HDMI input, you might want to consider purchasing an external adapter. Chromecast or Mi TV Stick, which will add these features to any screen.
Application Mi Remote occupies a middle ground, offering convenient control and streaming of local files. It's ideal for those already deeply integrated into the ecosystem. Xiaomi and prefers to have all controls in one interface.
Understanding the differences between these methods will help you avoid disappointment and enjoy your digital content at its best. Ecosystem Xiaomi provides flexible tools for any use case, the main thing is to configure them correctly.
Why isn't my TV showing up in the list of available devices?
The most common cause is that the phone and TV are connected to different parts of the network (for example, one to the guest Wi-Fi, the other to the main Wi-Fi). It's also possible that the discovery feature (Screen Mirroring or AirPlay) is disabled on the TV. Try restarting the router.
Is it possible to broadcast a screen if there is no internet, only a router?
Yes, Miracast (system streaming) doesn't require internet access; devices can see each other via a router over a local network. However, online video (like YouTube) does require internet access.
Does broadcasting affect internet speed?
Using system broadcasting (Miracast) uses almost no internet bandwidth, as data is transferred within the local network. Using Cast (online video), traffic is consumed directly by the TV; the phone merely manages the process.
How to improve image quality when the video is choppy?
Try switching your router to the 5 GHz channel if both devices support it. Also, close unnecessary apps on your phone and make sure no other devices are downloading large files.