Modern smartphones like the Xiaomi Redmi Note 8 have powerful displays, but for company content or just for comfort, you often want to see the image on the big screen. Fortunately, technology makes it easy to stream the picture from a mobile device to a TV without unnecessary complications. There are several proven methods, each of which has its own features and hardware requirements.
In this article, we will take a detailed look at how to configure image output using built-in Android system features and shells. MIUI, You'll learn about the nuances of connecting through Wi-Fi and USB-cable, which will help to avoid delays and desynchronization of sound, the correct setting will ensure stable data transmission in high resolution.
Before you start taking action, you need to make sure your devices are compatible and in the right network environment. The key to most wireless methods is to have your smartphone and TV on the same local Wi-Fi network. Ignoring this rule is the most common reason why gadgets don’t see each other.
Preparatory phase and network verification
The first step to a successful broadcast is to prepare the infrastructure correctly. Make sure that your router is stable and distributes a signal at 5 GHz, if possible, as this will provide less latency when transmitting the video stream. The Redmi Note 8 smartphone should be connected to the network to which the Smart TV or TV set-top box is connected.
Check the software versions on both devices. Often, manufacturers release updates that improve Miracast and DLNA communication protocols. Go to the TV settings and find the Support or About TV section to initiate a search for updates. On the phone, the path usually lies through Settings → About Phone → MIUI version.
Also, you should turn off the power saving mode on your smartphone, which can aggressively limit the background processes necessary to maintain a connection, especially if you plan to watch a long movie or play high-graphics games, and the stability of the connection depends on whether the system will not “sleep” the network module.
⚠️ Note: If your router supports band-sharing (2.4GHz and 5GHz have different network names), make sure that both your phone and TV are connected to the same frequency, preferably 5GHz for video in the same range. 4K.
It is not superfluous to restart the router before setting up, especially if it has been running without interruption for several days, this will clear the cache of network spreadsheets and can solve problems with the visibility of devices on the local network.
Use of the built-in Translation function in MIUI
The MIUI shell on the Redmi Note 8 has a built-in screen duplication tool that is based on the Miracast standard. This is the fastest way to do this, without needing to install additional software. To activate it, open the notification curtain and find the Translation icon (may be called Cast or Wireless Monitor). If the icon is not, add it through the Control Panel Edit menu.
Once the feature is turned on, the phone will start searching for available devices. The app must also be launched on the TV. Depending on the TV brand, it can be called Screen Share, Miracast, Motorola Translation (yes, this happens on Android TV), or simply Wireless Display. Once the TV appears on the list on your smartphone, click on it to pair.
- 📺 On Samsung TVs, the feature is often called Screen Mirroring and built into the system.
- 📺 Nana LG need to start the application LG TV Plus or find the source of the Screen Share signal».
- 📺 Sony and Philips devices often use Miracast’s built-in protocol without unnecessary apps.
- 📺 For Android. TV (Sony, Philips, Xiaomi TV) Sometimes you need to turn on the standby mode in the network settings.
It is important to note that when using this method, the phone screen is completely duplicated on TV, which means that any notifications, incoming calls or messages will be visible to everyone in the room. Privacy in this mode is not guaranteed, so it is better to turn on the Do Not Disturb mode before launching the film.
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To reduce the latency of games, close all background apps that consume traffic, such as torrents or downloads in the Play Market.
Image quality depends on the power of the Wi-Fi signal. If you notice artifacts or “squares” in the image, try to approach the router or reduce the output resolution in the broadcast settings, if this option is available in your version of MIUI.
Broadcasting via Google Home and Chromecast
If your TV supports Chromecast built-in technology or has a Chromecast/Android TV Box attached to it, the most reliable way to do this is to use the Google Home app, an official tool from Google that provides better stability and support for codecs.
Download the Google Home app from the Play Market if it hasn't already been installed. Once it's launched, it will automatically scan the network and find your devices. Select your TV from the list. In the control menu that opens, click the "Cast screen" button. The system will alert you that all the contents of the screen will be broadcasted, and request confirmation.
| Parameter | Miracast (Integrated) | Chromecast (Google Home) | DLNA (Media) |
|---|---|---|---|
| Type of transmission | Full screen duplication | Complete duplication or tab of the browser | Media files only (photos, videos) |
| Delay (Latency) | Medium/High | Low (depends on router) | Absent. |
| Working in the background | The phone screen should be on. | You can use other apps. | You can lock the phone. |
| Battery consumption | High-pitched | Medium. | Low. |
The advantage of the method through Google Home is the ability to broadcast not only the desktop, but also individual tabs of the Chrome browser, which allows, for example, to show presentations or web pages, leaving the phone free for other tasks.
It is worth remembering that Chromecast requires a Google account and Google Play services. Some versions of Xiaomi, intended for the Chinese market and re-flashed on the global market, may experience certificate conflicts, which is solved by reflashing or installing security certificates.
Broadcasting videos from YouTube and streaming services
Special attention should be paid to streaming content from video player apps such as YouTube, Netflix, IVI or Okko, which uses a different principle: the phone acts only as a remote control, and the video stream is downloaded by the TV directly from the Internet, this is called casting.
To implement this method, open the video in the app on Redmi Note 8. Find the broadcast icon (a rectangle with waves in the corner) at the top or bottom of the player. Click on it and select your TV from the list. The video will run on the big screen, and the phone can be used to rewind, select volume or even turn off - playback will not be interrupted.
This method is the most energy efficient and provides maximum picture quality, since it does not load the smartphone processor with encoding the video signal. Video resolution will be determined by the capabilities of the TV and the speed of the Internet channel, not the power of the phone.
⚠️ Note: If the YouTube broadcast button is not active or the TV is not found, check that the YouTube apps on your phone and TV are updated to the latest versions.
It's important to understand the difference: when you duplicate a screen (Miracast), the phone encodes a picture and sends it out, using the battery. When you cast (YouTube), the phone only gives the command "turn on this video", and the TV pumps it itself, so it's always preferable to use the built-in button in the player to watch movies, rather than the "Screen Translation" function.
Wired connection via USB-C to HDMI
For users who are critical to minimum latency (e.g. gamers) or lack stable Wi-Fi, there is a wired option. However, there is an important technical nuance that is often overlooked. Xiaomi Redmi Note 8 has a USB Type-C port, but it is USB 2.0 standard and does not support MHL or DisplayPort Alt Mode video transfer technology directly.
This means that a regular USB-C HDMI adapter that runs Samsung or Huawei flagships will not work with the Redmi Note 8. The screen will remain black. To display the image via cable to this model requires the use of special adapters with a DisplayLink chip or connection through a docking station with its own OS and drivers, making this method expensive and difficult to implement.
However, if you are using an external graphics card or a specific adapter supported by the system, the path to setup is as follows:
- 🔌 Connect the adapter. USB-C ce HDMI port-of-charge.
- 🔌 Connect the adapter and TV with a cable HDMI.
- 🔌 Switch the signal source to the TV mode HDMI 1 (or other appropriate).
- 🔌 The phone may require permission to debug USB or running a special application for an adapter.
Given the limitations of the Redmi Note 8, the wired method is not recommended for this model; wireless technology is more stable and does not require the purchase of expensive specialized converters.
Why does Redmi Note 8 not display the image over the cable?
Use of third-party broadcasting applications
If standard methods don’t work or the functionality isn’t enough, Google Play apps can help, and they can be useful for streaming older models that don’t support Smart features to TVs, via TV-connected media players or other phones.
One popular solution is the Web Video Caster app, which allows you to stream video files stored in your phone's memory or stream video from sites that don't have a built-in cast button, and it scans the network, finds DLNA-compatible devices, and streams them.
Another powerful tool is TeamViewer QuickSupport or AnyDesk, which, although designed for remote control, can be used to show the screen of a phone on a PC, which in turn is connected to a TV. This creates a chain: Phone → PC → TV. This is a complex method, but it works in a corporate environment.
When installing these apps, read the permissions carefully. To broadcast the screen, they will need access to Show on top of other apps and access to the local network, and without these permissions, the program will not be able to capture the image and transfer it to an external device.
☑️ Checking before installing applications
Remember that third-party software can consume more CPU resources than system solutions. This can cause the Redmi Note 8 body to heat up during long sessions.
Solution and optimization of quality
During the setup process, users may encounter a number of typical problems: If the image twitches or is interrupted, most likely, there is a lack of Wi-Fi bandwidth. Try disconnecting other devices from the network or moving the router closer to the viewing area.
If you have an image but no sound, check your Bluetooth settings. Sometimes the sound can switch to wireless headphones that were paired earlier, instead of the TV speakers. Also, the broadcast settings (cog in the Cast menu) can have a "Video Only" checkbox or a similar option.
To optimize quality:
- 🚀 Close the background applications that use the Internet.
- 🚀 Turn it off. VPN on a smartphone, as it can interfere with the detection of devices in the local network.
- 🚀 Update Wi-Fi Module Drivers through System Update MIUI.
⚠️ Attention: Use VPN-Services are often blocked by detection protocols (UPnP/DLNA), Make the TV invisible to the phone. VPN before setting up.
If nothing works, try resetting the network settings on your phone.This will delete stored Wi-Fi passwords, but often resolve deep software conflicts of network modules. → Connection and sharing → Reset Wi-Fi, mobile networks and Bluetooth.
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The most stable result on the Redmi Note 8 comes from a combination of 5 GHz Wi-Fi and built-in Translation or cast via YouTube.