Broadcasting the screen of a smartphone on the big screen Xiaomi Mi TV 4A offers a lot of opportunities, from watching movies in high resolution to running mobile games on a 43-55-inch display. But not everyone knows that the TVs in this series support several types of connection, both wireless and wired. The choice of method depends on your phone model, the version of the firmware Mi TV and even the generation of Wi-Fi router.
In this article, we’ll look at all the current synchronization methods, from standard Wi-Fi Direct to obscure features like Mi Share (formerly Miracast), focusing on common errors: why the phone can’t see the TV, how to fix the latency of the image when broadcasting, and what to do if the sound is only coming through a smartphone, and at the end, a table of device compatibility and answers to frequent questions.
If you have never connected a gadget to Xiaomi Mi before TV 4A, Start with wireless methods, which are simpler and don't require additional cables, and owners of older TVs (before 2019) or phones without Miracast support will have to use them. HDMI-adapter USB-cable, but there are nuances, which we will talk about below.
1. Connect via Wi-Fi Direct (the most versatile way)
Wi-Fi Direct is a technology that allows devices to communicate directly, without a router. In the Xiaomi Mi TV 4A, it is built-in by default, but on the phone you may need to turn it on manually, a method that works on most Android smartphones (including Redmi, POCO, Samsung) and even on some iPhone models (with limitations).
How to connect:
- On the Mi TV 4A remote, click Menu → Settings → Network & Internet → Wi-Fi Direct.
- Turn on Wi-Fi Direct on your phone: On Android: Settings → Connections → Wi-Fi Direct (or Additional → Wi-Fi Direct). On iPhone: Use Screen Mirroring (see Section 3).
Mi TV 4A
MiTV-...
Confirm the connection on the TV (entry may be required) PIN-code).
Once successfully connected, a notification will appear on the TV screen, and an active broadcast icon will appear in the phone's notification panel, with minimal latency (1-2 seconds), but the quality depends on the distance between the devices and the presence of obstacles.
Telephone and TV are on the same network (if you use a router)|Disabled. VPN and energy-saving regimes|The TV is in the "Allow detection" mode"|Updated firmware on both devices-->
⚠️ If the phone can't see the Mi TV 4A In the list of devices, try rebooting both gadgets. MIUI (Especially versions 12–13) may need to enable Developer Mode and activate the Wi-Fi Debugging option.
2. Screen Mirroring (Miracast) for Android and iPhone
Miracast is a wireless screen broadcast standard that Xiaomi Mi TV 4A implements through Screen Mirroring. Unlike Wi-Fi Direct, it transfers not only media files, but also full screen duplication of the smartphone, including games and applications.
- 📱 Android works on all devices with version 4.2+ (Better 6.0.+).
- 🍎 Apple is required for iPhone TV TV with AirPlay 2 support (in Mi) TV 4A There is no such thing as a snag, but there is a snag, see below).
- 📶 Maximum distance between devices - 10 meters (in practice, stable up to 5 m).
Instructions for Android:
- On TV: Settings → Connections → Screen Mirroring (or Miracast).
- On your phone: open Settings → Screen → Wireless Display (on Samsung) or Settings → Connected Devices → Screen Broadcast (on Xiaomi/Redmi).
- Select your Mi TV 4A and confirm the connection.
The way around iPhone (without Apple TV):
Since Mi TV 4A doesn't support AirPlay, you can use third-party apps like ApowerMirror or LetsView, which create a virtual server on your TV that your iPhone connects to via a local network, and minus 3-5 seconds of delay.
Android (Xiaomi/Redmi/POCO)|Android (another brand)|iPhone|Other-->
Connection via HDMI (for minimum delay)
If you need maximum stability (for example, for playing games or watching videos in the video game) 4K), better HDMI-That's gonna take a cable:
- 📱 Adapter (depending on the phone connector): USB-C → HDMI (for modern Android. Lightning → HDMI (for iPhone, requires a certified adapter from Apple. → HDMI (for old Android smartphones).
- 📺 Free HDMI-port TV 4A (usually 2-3).
- 🔌 Cable HDMI 2.0 (support 4K@60Hz).
Step-by-step:
- Connect the adapter to the phone and HDMI-cable to adapter and TV.
- On the Mi remote. TV 4A Press the Source (or Input) button and select the appropriate one. HDMI-port.
- The phone may need to confirm the output of the image (on Android, a notification usually appears).
✅ Pros of the method:
- Zero latency (ideal for gaming)
- 4K HDR support (if cable and adapter support)
- Stable connection without breaks.
❌ Cons:
- You need to buy an adapter (cost from 500 to 3000) ₽).
- The phone is discharged faster (especially when playing games).
💡
If the image on the TV is cropped at the edges, check the zoom settings in the Mi TV 4A menu: Settings → Display and Sound → Image Mode → Full-screen
4.Use of USB-cable (for file transfer and charging)
USB is the easiest way to transfer files (photos, videos, music) from your phone to your TV or vice versa, but USB broadcasting to Mi TV 4A is not supported, requiring HDMI or wireless methods.
What can be done via USB:
- 📁 View photos/video from your phone on a large screen (like a flash drive).
- 🔋 Charge your phone (if the TV supports) USB OTG).
- 🎵 Playing music through TV speakers.
Instructions:
- Connect the phone to the Mi TV 4A through USB-cable (preferably original).
- A notification will appear on the TV: select File Transfer (or MTP) mode.
- Open the Files app on your TV and go to the section USB-device.
⚠️ Note: Some of the Mi's firmware TV 4A (Especially before 2020, it may not work. MTP-In this case, the phone will be defined as a charger, but the files will not show.The solution is to update the TV firmware (see section 6).
5. Translation applications (alternative methods)
If the built-in features don't work, you can use third-party apps, which are especially useful for iPhones or older Android smartphones without Miracast support.
Top.-3 applications for Xiaomi Mi TV 4A:
| Annex | Supported OSs | Delay. | Features |
|---|---|---|---|
| ApowerMirror | Android, iOS | 2-to-4 seconds | Supports screen recording, annotations |
| LetsView | Android, iOS, Windows | 1-3 sec. | Free, but with advertising. |
| Mi Share (built-in) | Android only (MIUI) | 1 sec. | Quick connection, but only for Xiaomi devices |
How to connect with ApowerMirror:
Why can applications not work?
6 Problem Solving: The phone doesn't see TV or no sound
Even with the right connection, there can be errors, and here are the most common problems and solutions.
1. The TV is not displayed in the list of devices:
- 🔄 Reboot both devices.
- 📶 Check that your phone and TV are connected to the same Wi-Fi network (even Wi-Fi Direct sometimes requires a shared network).
- 🔧 Update the Mi firmware TV 4A: Settings → On TV. → Updating the system → Check for updates
- 📱 On Android, turn on Developer Mode and activate Debugging over Wi-Fi (Settings) → The phone. → Version. MIUI — tap 7 times).
2. The only sound that comes through the phone is:
- 🔊 On Android: In the notification bar during the broadcast, click on the Sound icon and select Television.
- 🍎 On iPhone: Screen Mirroring is not available – use ApowerMirror with Audio Cast enabled.
- 🎵 Check the sound settings on the TV: Settings → Sound. → Sound output → HDMI ARC (if connected to HDMI).
3. Image delay (lag) during broadcasting:
- 📶 Reconnect to Wi-Fi at 5GHz (less loaded than 2.4GHz).
- 📱 Close the background apps on your phone (especially instant messengers and games).
- 🖥️ In the broadcast settings, select Game or Low Lag (if available).
💡
If nothing works, reset the network settings on your TV: Settings → Network and Internet → Additional → Network Reset. After that, you have to reconnect to Wi-Fi.