Modern smartphones such as Redmi Note 7, have powerful screens, but viewing high-resolution content on a large diagonal often requires outputting the image to an external display. Wireless connection is the most convenient way to stream photos, videos, or gameplay without the hassle of cables. Wi-Fi Direct and built-in broadcast protocols allow you to establish a connection between your gadget and Smart TV in a matter of minutes.
Device owners Xiaomi often encounter interface nuances MIUI, which differs from pure AndroidIt is important to understand that for successful synchronization, both devices must be on the same local network. Connection stability The quality of the connection directly depends on the router's signal quality and the TV's software version. In this article, we'll cover all available methods in detail, from system functions to third-party apps.
There are several basic methods of transmitting a video signal, each of which has its own advantages. Miracast protocol allows you to duplicate the entire screen, while DLNA for transferring media files. The choice of a specific method depends on the intended use and the technical capabilities of your TV.
Preparing equipment and setting up the network
Before you begin setup, you need to make sure all components are ready for use. Router must maintain standards Wi-Fi 802.11n or higher, as older versions may not provide sufficient bandwidth for the video stream. Connect both your smartphone and TV to the same wireless network.
Check that on Redmi Note 7 The wireless module is enabled. Sometimes the system may limit background activity, so make sure power saving mode isn't blocking network services. IP addresses devices must be on the same subnet, which usually happens automatically when connecting to a home router.
⚠️ Important: If your router supports split-frequency bands (2.4 GHz and 5 GHz), make sure both devices are connected to the same frequency. Mixing bands may result in devices not being able to see each other in the available bands.
☑️ Check before connection
For stable operation, it is also recommended to close heavy applications on your smartphone that may consume traffic. Background downloads may cause audio and video desynchronization during broadcasting. Make sure your firmware version is correct. MIUI This is relevant because updates often fix network stack bugs.
Broadcast via the built-in "Broadcast" function
In the shell MIUI There is already a built-in screen mirroring tool that works using the protocol MiracastThis method doesn't require any additional software and is activated through the control panel. Find the "Broadcast" icon in the notification bar or go to the connection settings.
Once the function is activated, the phone will begin searching for available receivers within the network range. Smart TV The TV must support wireless display technology. On some TV models, you must first launch the "Screen Share" or "Miracast" app from the app menu.
When your TV's name appears in the list, tap it to pair it. The connection process may take 5 to 15 seconds. Delay When using this method, the cost is minimal, which allows you to use your smartphone as a remote control or to display presentations.
If the image appears but the audio continues to come from your phone, check your media settings. In most cases, the audio stream switches automatically, but sometimes you may need to manually select the output device in the menu. Settings → Sound and vibrationPicture quality depends on the strength of the Wi-Fi signal.
Using Google Chromecast technology
A more advanced way is to use an ecosystem Google Cast. Redmi Note 7 has built-in support for this protocol, allowing you to stream content from compatible apps directly to your TV. This relieves the smartphone's processor, as the TV buffers the video itself.
For this method to work, the application must be installed on the smartphone. Google HomeAfter launching the app, find your TV in the list of devices. Cast Screen function will allow you to clone the entire Android interface onto a large screen with minimal loss of quality.
The advantage of this method is the ability to control playback from your phone without interrupting the stream. You can minimize the app, answer a call, or go online, and the video will continue playing on your TV. Cast Protocol Provides a more stable connection compared to direct Miracast.
It is worth noting that for work Chromecast A stable internet connection is required, as content is often downloaded from the cloud. Make sure your connection speed is sufficient for 4K streaming, if your TV supports this resolution. Otherwise, buffering pauses may occur.
Screen mirroring apps from Xiaomi and third parties
Company Xiaomi often preinstalls the application Mi Remote or Mi Drop (Now ShareMe), which may have features that interact with TV. However, for specialized broadcasting, it is often more effective to use proven third-party solutions from Google Play.
A popular solution is the app Web Video Caster or LocalCastThey allow you to stream video files stored in your phone's memory or stream video from your browser. Interface Such programs allow you to select audio tracks and subtitles, which is especially important for watching movies.
When choosing third-party software, pay attention to the permissions it requests. Access to the local network It's required for operation, but requests for access to contacts or SMS should raise red flags. Use only highly rated apps with a large number of reviews.
| Application | Broadcast type | Subtitle support | Advertising in the free version |
|---|---|---|---|
| Google Home | System (Cast) | Depends on the source | No |
| Web Video Caster | Media Files/Streams | Yes | Eat |
| Mi Remote | Management/Media | Partially | No |
| BubbleUPnP | DLNA/UPnP | Yes | Eat |
Some apps offer paid versions with advanced features, such as the ability to stream 4K HDR video. If you plan to frequently use your phone as a media center, you might want to consider purchasing one. premium versions to disable ads and gain access to high-definition codecs.
Streaming video from your browser and YouTube
The simplest usage scenario is watching videos through the built-in browser or application. YouTubeThe video player interface almost always features a streaming icon (a rectangle with Wi-Fi waves). Clicking it allows you to select the target device.
When broadcasting from a browser Chrome on Redmi Note 7 You can open the menu, select "Cast," and send a tab or the entire screen to your TV. This is convenient for viewing websites that don't have a native Smart TV app. Quality In this case, it depends on the page rendering on the smartphone.
Why does video slow down when streaming from a browser?
Browser streaming often requires more processor resources from your smartphone, as it encodes the video stream in real time. Closing unnecessary tabs can improve performance.
The screen must be lit, otherwise data transfer may be paused by the system to save power. Display settings It is worth temporarily changing it by increasing the time before switching to sleep mode.
Troubleshooting and common connection errors
Despite the simplicity of the technology, users often encounter problems. The most common one is that the TV doesn't appear in the list of available devices. In this case, the first step is to reboot the router, as there may be an IP address issue.
Another common error is audio and video desynchronization. This can be resolved by reconnecting or reducing the stream quality in the app settings. Lags can also be caused by overheating of the smartphone, as Redmi Note 7 may become hot during active data transfer via Wi-Fi.
⚠️ Note: Smart TV interfaces and MIUI versions are constantly being updated. The menu item layout may differ from what's described. If you can't find the option you need, search for "Cast" or "Broadcast" in your phone settings.
If the connection keeps dropping, try forgetting the Wi-Fi network on both devices and reconnecting. In rare cases, resetting the network settings on your smartphone via the menu may help. Settings → Connection & Sharing → Reset Wi-FiThis will not delete your personal data, but it will clear saved passwords.
FAQ: Frequently Asked Questions
Is it possible to connect Redmi Note 7 to a TV without a Wi-Fi router?
Yes, some TVs support Wi-Fi Direct, which allows you to connect your phone directly to the TV without a router. You can also use your phone's hotspot, but this will use up your mobile data if the content isn't stored on the device.
Why is there no sound on the TV during broadcasting?
Check that Bluetooth headphones aren't connected to your phone. Also, in the sound settings, when connected to a TV, a selection of output devices often appears. Make sure the TV is selected, not the phone speaker.
Does screencasting affect battery life?
Yes, active Wi-Fi video streaming and screen activity drain battery power significantly. It's recommended to keep your phone connected to a charger during extended viewing sessions.
Does Redmi Note 7 support 4K streaming?
Technically, the Snapdragon 660 processor and phone display support high resolution, but the final quality depends on the capabilities of the TV and the bandwidth of your Wi-Fi network. For 4K, the 5 GHz band is recommended.