Broadcasting a smartphone screen to the big screen of a Mi TV or Redmi Smart TV from Xiaomi opens up a lot of possibilities, from watching high-resolution movies to showing presentations or streaming games. However, many users face problems when connecting for the first time - the TV does not find the device, lags occur or sound is transmitted with a delay. In this article, we will analyze all the current methods of broadcasting (including hidden MIUI functions), compare them in speed, stability and supported models, and give decision errors.
Xiaomi
MIUI TV
Mi TV 5 Pro
MIUI TV 3.0+
Wi-Fi Direct
Mi TV 4A
Miracast
Important! Before setting up, check that the TV and phone are connected to the same Wi-Fi network (for most ways).If you use mobile Internet (4G/5G), some features will not be available.
1. Wi-Fi Direct: Direct connection without router
Wi-Fi Direct is a technology that allows devices to connect directly bypassing a router, ideal for broadcasting in places without Wi-Fi access (for example, in the country or on a trip), Xiaomi has implemented support for this protocol on TVs based on MIUI TV 2.0 and later, but with reservations.
On Xiaomi/Redmi/POCO smartphones, the feature is called Fast Transmission (Mi Share), and on TVs it is called Wi-Fi Direct or Wireless Display. The main plus of the method is minimal latency (about 50-80 ms) and stable connection at a distance of up to 10 meters. However, there are also disadvantages: not all applications support sound transmission, and when you are under high load (for example, in games), image artifacts can appear.
To activate the broadcast:
- On TV: open Settings → Connection and Sharing → Wi-Fi Direct.
- On your smartphone: go to Settings → Connection and Sharing → Quick Transfer (Mi Share).
- Select the TV from the list of available devices and confirm pairing.
- Turn on the option Screen Translation (on some models it is hidden in the menu Additional).
⚠️ Attention: On Mi TVs TV 4S Redmi Smart TV X with firmware older than 2021 Wi-Fi Direct may not work as well due to the limitations of the Amlogic chipset.In this case, use Miracast (see next section).
TV and phone charged more than 30% | Both devices are power-saving mode disabled | Distance between devices no more than 5 meters | The TV is on "Developers" mode (if required)
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2. Miracast: The Universal Standard for Android
Miracast is an industry standard for wireless broadcasting supported by most Android devices (including Xiaomi, Samsung, Realme). Unlike Wi-Fi Direct, it does not require additional applications, but only works on TVs with MIUI TV 1.5+. The main advantage is compatibility with devices from other brands (for example, you can stream from Honor on Mi TV).
Connection algorithm:
- On TV: Settings → Display and sound → Wireless display (Miracast).
- On a smartphone: Settings → Connection and Sharing → Screen Broadcast (or Wireless Display in global firmware).
- Select the TV from the list. If the device doesn't show up, upgrade the TV's firmware or restart both gadgets.
Miracast’s downsides include delays of up to 150ms (critical for gaming) and possible audio transmission problems in some apps (e.g. Netflix or YouTube may block streaming due to a lack of video content). DRM-To solve the last problem, use Google Cast (see section 4).
- ✅ It works without the internet.
- ✅ Maintains permission until 1080p (on Mi TV 5 before 4K)
- ❌ Can brake at weak signal
- ❌ Not all apps transmit sound
How to turn Miracast on older Xiaomi models (2018–2019)
3. Google Cast (Chromecast): for streaming content
Google Cast (known as Chromecast) is a protocol optimized to transfer media content (video, music, photos) from supported apps. Unlike Miracast, it doesn't duplicate the entire screen, but instead "sends" content directly to the TV, which reduces the load on the smartphone. Xiaomi added Cast support to TVs starting with MIUI TV 2.5.
Advantages of the method:
- 🎬 Supports 4K HDR YouTube, Netflix, Disney+
- 🔊 Transmitting sound without delay (important for movies)
- 📱 Works with iPhone (via Cast-enabled apps)
How to broadcast:
- Make sure your phone and TV are connected to the same Wi-Fi network.
- Open a supported app (like YouTube) and click the Cast icon (📺).
- Select your Mi TV from the list.
⚠️ Attention: On Mi TVs TV 4A (2018 Google Cast may not work due to lack of Widevine certification L1. In this case, use HDMI-Adapter (Section 5) or update the firmware through OTA.
| Annex | Support for Google Cast | Max, permission. | DRM-defence |
|---|---|---|---|
| YouTube | ✅ Yes. | 4K HDR | ✅ There is. |
| Netflix | ✅ Yes. | 1080p | ✅ Got it. L1) |
| Twitch | ✅ Yes. | 1080p60 | ❌ No. |
| VLC | ✅ Yes (via "Rendering Devices") | 4K | ❌ No. |
| TikTok | ❌ No. | — | ✅ There is. |
4. AirPlay: for iPhone and Mac owners
While Xiaomi doesn’t advertise AirPlay, TVs on MIUI TV 3.0+ can receive streaming from an iPhone or iPad once the option is enabled, a solution for those who want to stream an iOS screen without buying an Apple TV.
Instructions for activation:
- On TV: Settings → System → Additional → Developer Mode → Enable AirPlay (can be called Screen Mirroring in global firmware).
- On iPhone: Swipe down from the top right corner to open Control Point and press Screen Duplicate.
- Select your Mi TV from the list.
Limitations:
- 🍎 It only works on TVs with Amlogic chipset. T972 or newer (e.g. Mi) TV Q2 75").
- 🔊 The sound is delayed. ~200 ms (not suitable for gaming).
- 📶 Requires stable Wi-Fi 5 GHz.
💡
If AirPlay does not appear in the settings, update your TV firmware via Settings → System Update. For 2020-2021 models, you may need to manually install a patch via USB (instructions on the XDA Developers forum).
5. HDMI-adapter: wired connection without lags
If wireless methods are unstable or you need minimal response time (e.g. for cloud gaming via Xbox Cloud or GeForce) NOW), use HDMI-It's the only way to broadcast with resolution. 4K@60Hz support HDR10+ quality-free.
You will need to:
- 📱 For Android: Adapter USB-C → HDMI (for example, Xiaomi USB-C to HDMI or Baseus).
- 🍎 For iPhone: Apple’s official Lightning Digital adapter AV (or certified).
- 🔌 Cable HDMI 2.0 (for) 4K) or HDMI 2.1. for 8K).
Step-by-step:
- Connect the adapter to the smartphone.
- Connect the adapter to the TV with an HDMI cable (use the HDMI 2.0/ARC port for better quality).
- On the TV, select the appropriate signal source (HDMI 1/2/3).
- On a smartphone, you may need to allow the transfer of the image in the display settings.
⚠️ Attention: On Xiaomi smartphones with Snapdragon processor 8 Gen 1/2 (for example, Xiaomi 13 Pro) when connected through HDMI You can turn off the main display, and to return the image to the phone, disconnect the cable or restart the device.
💡
HDMI-Adapter is the only way to broadcast the screen from iPhone to Mi TV Wireless methods (AirPlay) add lag ~200ms, which is critical for music and games.
6. Hidden MIUI features to improve broadcasting
Firmware MIUI TV It contains several hidden options that can significantly improve the broadcast quality, these settings are not documented in the official instructions, but are available through the engineering menu or ADB-team.
Optimization of latency (latency):
If the image is behind the sound when broadcasting on Miracast or Wi-Fi Direct, reduce the frame buffer:
- Activate Developer Mode on your TV (click 7 times on Build Number in Settings → About TV).
- Go to Settings → Additional → For developers.
- Find the option Minimum Latency Miracast and turn it on.
Compulsory Enablement of 5 GHz Wi-Fi:
Many broadcast problems are related to network congestion of 2.4 GHz.To force the TV to use only 5 GHz:
- Connect to the TV via ADB (instruction below).
- Run the command: setprop service.wifi.countrycode US This will open additional 5 GHz channels (including DFS).
- Reboot the TV.
How to Connect to Mi TV by ADB
Solving typical problems
Problem 1: The TV is not visible in the list of broadcast devices.
Decisions:
- 🔄 Reboot both devices.
- 📶 Make sure they are connected to the same Wi-Fi network (not the guest network!).
- 🛠️ Update the TV to the latest version (in the MIUI TV 3.0+ Miracast's errors corrected).
- 🔌 If you use Wi-Fi Direct, turn off your mobile data on your phone – it may conflict with a direct connection.
Problem 2: Sound is transmitted, but image is not (or vice versa).
Decisions:
- 🎵 In the broadcast settings on the phone, select Only Sound, then turn on the Screen again. + sound.
- 🔧 On the TV in the Wireless Display menu, turn on the option Forced encoding H.264 (old-fashioned).
- 📱 Android 12.+ Turn off Smooth scrolling in display settings - this can cause artifacts.
Problem 3: Lags and jerks when broadcasting games or videos.
Decisions:
- 🎮 Reduce the broadcast resolution to 720p in Miracast settings.
- 📡 Switch to 5 GHz network or use it. HDMI-adapter.
- 🔋 Close the background apps on your phone (especially messengers and social networks).
- 🛒 For cloud gaming (Xbox Cloud) use only HDMI-Connection – Wi-Fi delay will make the game unplayable.