Modern multimedia capabilities make it easy to display content from your smartphone on the big screen, turning a regular TV into a digital entertainment center. Redmi And DEXP Often, users need to stream photos, videos, or even the entire screen of a mobile device for a more comfortable viewing experience. The process of synchronizing these devices via a wireless network Wi-Fi It doesn't require deep technical knowledge, but it has its own nuances that depend on the operating system version and TV model.
The basis for a successful connection is a stable local network, to which both devices must be connected. Data transfer protocols such as Miracast, DLNA or proprietary solutions from Google, built into the shell MIUI, making the process as simple as possible for the user. It's important to understand that the quality of the transmitted image directly depends on the router's speed and the absence of interference in the airwaves, so before beginning the setup, it's recommended to ensure the network equipment is working properly.
In this article, we'll cover all available connection methods in detail, from standard system functions to specialized apps. You'll learn how to activate projection mode, which security settings can block the connection, and how to fix common errors that occur during device search. Follow our step-by-step instructions to enjoy content on the big screen without the hassle of wires.
Preparing equipment and network settings
Before setting up the stream, you need to ensure the underlying infrastructure is working properly. The first and most critical requirement is that both devices are on the same wireless network. The router must broadcast a signal on a frequency supported by both devices, although for heavy video streaming, it's preferable to use a frequency band. 5 GHz, which provides higher throughput.
Make sure that on your TV DEXP The Wi-Fi module is activated and connected to your home router. Depending on the model year, the interface may differ, but the basic principle remains the same: open the settings menu, select "Network," and connect to a known SSID. On a smartphone Redmi The wireless module must also be enabled, but the "Mobile hotspot" mode or Internet distribution must be disabled to avoid addressing conflicts.
⚠️ Note: Some routers have an AP Isolation feature that prevents devices on the same network from seeing each other. If your TV and phone are connected but can't see each other, check your router settings and disable this feature.
It's also worth paying attention to software updates. Manufacturers regularly release patches that improve protocol stability. DLNA And MiracastGo to the system settings on both devices and check for available updates. This may take a few minutes, but will significantly reduce the risk of connection errors in the future.
☑️ Check before connection
Using the built-in Cast feature on Redmi
The easiest and fastest way to display an image is to use the operating system's native function. Android, which is in the shell MIUI Xiaomi's solution is called "Broadcast" or "Wireless Monitor." This method is based on technology Miracast and doesn't require any additional software. The process is extremely simple: pull down the notification shade on your smartphone and find the "Broadcast" icon.
If the icon isn't in the quick access menu, go to the main settings, select "Connection and sharing" (or "Other connection methods" in older versions of MIUI), and tap the corresponding section. The phone will begin scanning for available devices within range. Your device should appear in the list. DEXP TV. After selecting a device, a connection permission request may appear on the TV screen, which must be confirmed with the remote control.
- 📱 Open the notification shade and find the "Broadcast" button.
- 📡 Wait for your phone to detect your TV DEXP.
- ✅ Click on the device name to start screen mirroring.
- 🎬 Enjoy content on the big screen in real time.
It's worth noting that this method mirrors the phone's entire screen to the TV. This means all notifications, incoming calls, and user actions will be visible on the big screen. This is convenient for watching videos from your gallery, but if you plan to use your phone for personal messages, it's best to set up "Do Not Disturb" mode in advance.
Broadcast via the Google Home app
If the built-in tools do not work correctly or your TV DEXP based on the platform Android TV, the most reliable option would be to use the official application Google HomeThis service is a standard for the Google ecosystem and provides a stable connection via the protocol Chromecast built-inYou can download the app from the official store. Google Play, if it is not preinstalled.
After installation, launch the app and sign in to your Google account. The program will automatically scan the network and find available devices for streaming. Unlike standard mirroring, Google Home allows you to stream content from specific apps (YouTube, Netflix, Chrome browser) with the ability to control playback from your smartphone, without draining your phone's battery on image rendering.
To start casting your entire screen, tap your TV's name in the list of devices in the Google Home app and select "Cast Screen." Image quality will adapt to your current network speed, preventing connection drops even with an unstable signal. However, for this method to work, your TV must support Google technologies or have Chromecast built-in.
Setting up DLNA for multimedia content
Protocol DLNA (Digital Living Network Alliance) isn't designed for full screen mirroring, but for streaming media files like photos, music, and videos. It's ideal if you want to watch a movie saved on your phone or share a photo album with friends without having to mirror your smartphone's interface. On TVs DEXP This function is often implemented through a built-in media player.
To make the connection, make sure you have a DLNA-enabled app running on your TV (usually called "Media," "Gallery," or "Video"). On your phone, Redmi Simply open your gallery or video player, select the desired file, and click the "Stream" button (the rectangle icon with waves). Select your TV from the list that appears.
The advantage of this method is that once playback starts, the phone can be used for other tasks, while the video continues to play independently on the TV. DLNA also often provides better image quality, as the file is transmitted in its original resolution, rather than being compressed into a real-time video stream, as with Miracast.
| Characteristic | Miracast (Broadcast) | DLNA (Media) | Google Cast |
|---|---|---|---|
| Content type | Full screen | Photos, Videos, Music | Videos from apps |
| Phone addiction | High (screen on) | Low (can be folded) | Low (remote control) |
| Quality | Depends on the signal | Original file | Adaptive |
| Sound | Broadcast on TV | Broadcast on TV | Broadcast on TV |
Third-party applications for complex cases
In situations where standard protocols do not work or TV DEXP If your phone is an older model without Smart TV support, third-party apps come to the rescue. One of the most popular solutions is the program Castify or TV Cast for DEXPThese applications create a software bridge between the phone and the TV, emulating standard data transfer protocols.
Install the selected application on your smartphone Redmi from the Play Market. After launching, the program will ask you to select a target device. If the automatic search doesn't yield results, many apps allow you to manually enter the TV's IP address. This address can be found in the TV's network settings under "About TV" or "Network Status."
⚠️ Note: Third-party apps may contain ads or require a premium purchase to unlock Full HD quality. Be careful when granting file access permissions.
A unique feature of these programs is the ability to stream video from browsers that don't have a "Stream" button. You simply copy the video link into the app, and it streams it to your TV. This is a versatile solution that often saves the day when other methods fail.
What to do if the phone doesn’t see the TV?
Make sure your router isn't configured to use a guest network for one of your devices. Also, try rebooting the router by unplugging it for 10 seconds. Sometimes temporarily disabling your antivirus or firewall on your phone can help.
Solving common connection problems
Even with proper setup, users may encounter issues: the image flickers, there's no sound, or devices simply can't see each other. Most often, this is due to a congested Wi-Fi channel. If neighbors also have routers on the same frequency, interference is possible. In this case, changing the broadcast channel in the router settings may help.
Another common issue is video format incompatibility. If your TV displays "Format not supported" when trying to play via DLNA, it means the built-in codec DEXP The file cannot be decoded. The solution is to install a third-party player (such as VLC) on the TV, if the platform supports it, or use full screen mirroring.
If the audio is coming from your phone instead of your TV, check the audio output settings in the app you're streaming from. In some cases, you may need to manually switch the audio output to a Bluetooth device or DLNA renderer in your phone's Bluetooth settings, even if the video is streaming over Wi-Fi.
⚠️ Please note: DEXP TV interfaces may be updated by the manufacturer. The layout of menu items may differ from those described. Always consult the official instructions for your specific model if you cannot find the setting you need.
Frequently Asked Questions (FAQ)
Is it possible to connect a phone to DEXP without Wi-Fi?
Yes, it is possible with a cable. For modern Redmi With a USB Type-C port, you'll need a Type-C to HDMI adapter. However, make sure your smartphone supports MHL or SlimPort technology, otherwise video transfer via cable won't work. Your TV will need to be switched to HDMI mode.
Why is there a lot of lag when streaming a game?
Lag is inherent to wireless protocols. It's critical for gaming. Try lowering the streaming resolution in your phone's settings or using a cable connection. Lag can also be caused by overheating of the phone's processor when simultaneously loading a game and encoding a video stream.
Is the image transmitted if the phone is locked?
When using DLNA or Google Home, yes, the streaming will continue. When using built-in mirroring (Miracast), the phone screen should usually remain lit, although some models Redmi allow you to turn off the screen while maintaining image transmission, but the sound may disappear.
Does the TV use the Internet from the phone when connected via Wi-Fi?
No, in the scenarios described, the phone doesn't share the internet with the TV. Both devices simply exchange data through the router. Bandwidth is only consumed if you're streaming online video, in which case each device uses its own network connection.