Connect Xiaomi Redmi smartphone to TV via USB-Cable for watching movies seems to be an easy task β but in practice users face errors such as "USB-The problem is, the device is not supported," "No signal" or "Files are not displayed. USB-The connection is not designed to broadcast the screen by default: it works as a drive (MTP) or charging, but not like HDMI-replacement.
In this article, we have 3 proven ways to display images from Redmi Note 12/11/10 Pro, POCO X5/F5 and other models on the TV screen via USB, including bypassing the limitations of MIUI. As well as a compatibility table with popular Samsung QLED, LG OLED, Sony Bravia TVs and solutions for older models without Smart TVs.
Spoiler: If your TV is released before 2018, you'll probably need a USB-OTG adapter or alternative methods like DLNA or Miracast, but even then, a USB cable can be used to transfer files and play them over the TV's built-in media player.
Before you start, check:
- π Type USB-cable: needed USB Type-C β USB-A (For modern Redmi or Micro-USB β USB-A (Charging-data cables are cheaper. $2 often do not support data transmission.
- πΊ Port on TV: should be marked as USB (Multimedia or USB 3.0 Ports. USB (Service) only works for software updates.
- π± Version. MIUI: on MIUI 14+ You may need to include a debugging USB (see section 2).
1. Method 1: Connecting as an external drive (MTP) is simple but limited
This is a basic method that works on 90% of TVs. USB-Your Xiaomi Redmi will be defined as a flash drive, and movies can be opened through the built-in TV player:
- β It is impossible to broadcast the phone screen (files only).
- β Not all video formats are supported by a TV (e.g.,.mkv with a TV). AC3 sound).
- β You will have to copy files to TV or use a file system. FAT32 (4GB limit per file).
Step-by-step:
- Connect Redmi to the TV with a USB-C β USB-A cable (or Micro-USB β USB-A for older models).
- On your phone, select File Transfer (MTP) mode in the connection notification.
- On the TV, open the USB signal source (Source or Input button on the remote).
- Select the movie in a TV media player (such as Samsung TV Plus or LG Media Player).
β οΈ If the TV canβt see the files, check the files:
- πΉ Phone file system format: FAT32 exFAT (NTFS Not supported by most TVs).
- πΉ Movie folder: it must be in the root directory (for example, /Movies/, not /Download/Telegram/Movies/).
βοΈ Checklist for connection by MTP
2. Method 2: USB + OTG-Adapter for older TVs (without Smart) TV)
If your TV is released before 2016 and does not support MTP, you can use a USB-OTG adapter (price ~$5), which converts the signal so that the TV recognizes the phone as an external drive even without modern protocols.
What you need:
- π OTG-supportive adapter USB Host (e.g., Host, UGREEN USB 3.0 OTG).
- π± Xiaomi Redmi phone with Type-C or Micro-USB connector.
- πΊ Port TV USB 2.0/3.0 (without a smart TV).
How to connect:
- Put it in. OTG-Adapter to the phone and connect to the adapter USB-cable.
- On the phone in the settings, turn on: Settings β Additional β Developer Mode β Debugging by USB (If there is no item, tap 7 times on the MIUI version in About Phone.)
- On TV, select a USB source and wait for the phone folders to appear.
β οΈ Note: Some Redmi models (e.g. Note 8 Pro) OTG It might not work because of the limitations of the kernel, and then an alternative method using an application would help. USB Debugging (see section 4).
Why can't TV see the phone through OTG?
3. Method 3: USB + screen broadcast app (Smart TV only)
If your TV is running Android TV (Sony Bravia, Xiaomi Mi TV, Philips) or WebOS (LG), you can stream Redmi screen over USB using special applications. This method is more complicated, but allows you to show not only movies, but also any content of the screen (YouTube, browser, games).
Conditions required:
- πΊ Android TV TV 9.0+ or WebOS 4.0.+.
Instructions for Android TV (Sony/Xiaomi):
- Install Scrcpy on TV (available on Google Play for Android TV).
- Connect your phone to your TV via USB and enable USB Debugging (see Section 2).
- Run Scrcpy on TV and select the connected device.
- On the phone, confirm the permission to debug (a request will appear).
For LG WebOS:
- Download ApowerMirror to your phone and TV.
Important: USB broadcasts are less latency than Wi-Fi (Miracast), but require a constant cable connection. This is not suitable for games, only for movies and videos.
4.The solution to the problem: why TV can't see your phone through USB
If the TV screen is black or there is an error after you connect, check out the 5 most common reasons:
| Problem. | Reason. | Decision |
|---|---|---|
| "USB-device is not supported" | TV does not support MTP | Use it. OTG-adapter or format your phone into FAT32 |
| "No signal" | Faulty cable or port | Try another cable (preferably the original Xiaomi) |
| Files are not displayed | Incompatible file system | Move the movies to the root folder (e.g. /Movies/) |
| "USB-storage" | MIUI blocks access to folders | Enable Display of Hidden Files in TV Settings |
| Video's slowing down | Weak. USB-port (2.0 instead of 3.0) | Connect to USB 3.0 port (usually blue) |
β οΈ Note: On the phones Xiaomi Redmi with MIUI 14 and later may work protection against connection to "untrusted devices." If the TV is not recognized, go to the:
Settings β Passwords and security β Privacy β Special permissions β USB- InstallationAnd allow the connection to this TV.
π‘
If the TV sees the phone but doesn't play the video, try converting the file to.mp4 with H.264 codec and AAC sound. Free program: HandBrake (settings: Preset: Android 720p30).
5. Alternative methods: when USB does not work
If none of these methods worked, consider 3 USB-free alternatives:
1. Miracast (wireless broadcast)
- πΉ Works for Redmi with MIUI 11+ TV with Wi-Fi Direct.
- πΉ How to turn on: Settings β Connection and sharing β Wireless display.
- πΉ Cons: delay ~2 seconds, possible lag at Full HD.
2. DLNA (streaming over the network)
- πΉ Use BubbleUPnP apps (on your phone) + DLNA-server).
- πΉ Supports.mkv,.avi, but requires stable Wi-Fi.
3. HDMI-adapter (best quality)
- πΉ We need an adapter. USB-C β HDMI (For example, Baseus HDMI Adapter, ~$20).
- πΉ Permits before 4K@60Hz without delay.
- πΉ Requires external power for Redmi (otherwise the image will flash).
Comparison of methods:
| Method | Quality. | Delay. | Difficulty |
|---|---|---|---|
| USB (MTP) | Original | No. | β |
| USB + OTG | Original | No. | ββ |
| Scrcpy/ApowerMirror | Full HD | ~1c | βββ |
| Miracast | HD | ~2c | ββ |
| HDMI-adapter | 4K | No. | βββ |
π‘
For maximum quality without delay use HDMI-adapter. USB It is suitable only for viewing pre-copyed files, and Miracast/DLNA β for convenience, but with losses as a.
6.Optimization for watching movies: settings Xiaomi Redmi and TV
To avoid brakes and playback problems, adjust both devices:
On the Xiaomi Redmi phone:
On TV:
- πΊ Enable Game Mode to reduce delay (relevant to Scrcpy).
- πΊ Turn off Motion Smoothing if the video slows down.
- πΊ For older TVs: Update the firmware through Settings β Support β Update of the PO.
β οΈ Note: If you connect Redmi to TV via the USB After 30 minutes, the phone can overheat:
- πΉ Take the phone case off.
- πΉ Connect your phone to charge (but not through the same charger) USB-port!).
- πΉ Use the Energy Saving Mode in the Settings MIUI.