You want to stream a video with Xiaomi Redmi Note 12 on the big screen, but Wi-Fi is buggy. HDMI-- No adapter on hand? USB-cable seems to be an easy solution, but in practice you encounter errors "Device is not supported" or black screen? In this article, we will discuss all the current ways to display Xiaomi screen on TV through the Internet. USB โ standard MHL lip-service MIUI, That works even on budget models.
Not all Xiaomi TVs and smartphones support live streaming USB. Like Redmi. 9A Physically unable to transmit video through port due to lack of chip MHL, The Mi 11 Ultra requires a special cable with DisplayPort Alt Mode support. We tested the solutions on 15 Xiaomi models (from Poco). X3 Xiaomi 13 Pro and identified 3 critical conditions for successful connection โ you will find them in the first section.
If you need to duplicate a screen for a presentation, streaming or watching movies, skip the theory and go to the practical instructions. For those who want to understand the technical details, we have prepared a comparative table of transmission protocols (MHL vs. SlimPort vs. USB-C Alt Mode) and explained why some cables are over 500โฝ They are worse than the original 2000s.โฝ.
3 mandatory conditions for displaying the screen Xiaomi on TV USB
Before you buy adapters or dig into the settings, check these settings. If at least one condition does not meet, connect through the USB It will not work with any manipulation.
- ๐ Type USB-Ports on TV: should support MHL (Micro-USB or DisplayPort Alt Mode (USB-C). Check the specifications of the model โ look for references to โMHL-readyโ or "USB-C from the video. Samsung QLED 2020+ and LG OLED CX They are usually compatible and budgets are TCL or Hisense, no.
- ๐ฑ Xiaomi smartphone model: only devices with Qualcomm Snapdragon processors 8xx (Xiaomi 12 Pro and MediaTek Dimensity 1200+ (Redmi K50 Pro) support DisplayPort Alt Mode. For a list of compatible models, see the table below.
- ๐ Cable or adapter: conventional USB-You don't need a charging cable, you need a special cable with a chip converter, UGREEN USB-C to HDMI 4K) or an externally powered adapter (for the MHL).
| Xiaomi model | Support for MHL | DisplayPort Alt Mode | Max, permission. | Notes |
|---|---|---|---|---|
| Xiaomi 13 Ultra | โ No. | โ Yes. | 4K@60Hz | Requires a cable with a chip VESA |
| Redmi Note 12 Pro+ | โ No. | โ Yes. | 1080p@60Hz | It only works with adapters on Realtek. RTD2173 |
| POCO F5 | โ No. | โ Yes. | 1440p@30Hz | Need a cable with support HBR3 |
| Xiaomi Mi 10T | โ Yes. | โ Yes. | 4K@30Hz | Best compatibility among older models |
| Redmi 9C | โ No. | โ No. | โ | Only wireless methods |
โ ๏ธ Note: If your TV is released before 2018 year, most likely his USB-The port is only designed to play media files from the flash drive. HDMI (ARC/MHL) โ It's usually signed on the back.
Method 1: Connecting through MHL (For older Xiaomi with Micro-USB)
Protocol MHL (Mobile High-Definition Link is the only way to display the screen through the USB on Xiaomi smartphones before 2019 (such as the Mi 8 or Redmi Note 5) and it works on the principle of "device-to-device" and requires:
- Micro-USB adapter โ HDMI supportive MHL (For example, Original MHL 2.0 Adapter).
- Cable HDMI-HDMI (It usually comes with an adapter).
- Power supply 5V/2A for the adapter (required! without power the picture will flash).
Step-by-step:
- Connect the adapter to the smartphone.
- Connect the adapter to the TV via HDMI.
- Connect the power supply to the adapter (use the charge from the phone).
- On the TV, select the HDMI (MHL) signal source.
- On the smartphone will appear a notification โConnected toโ MHL" โ confirm the screen duplication.
Power supply connected to the adapter|
Used by the original MHL-Adapter (not a cheap fake)|
The TV supports MHL (Check the menu "Signal Sources")|
On the smartphone enabled mode "Media Transfer" (Settings) โ Connected devices)
-->
If the screen is not duplicated:
- ๐ Try another one. HDMI-port on the TV (usually) MHL It only works with the port. HDMI1/ARC).
- ๐ Check the voltage of the power supply - if less 5V/2A, adapter won't start.
- ๐ฑ Reboot your smartphone with a connected adapter.
โ ๏ธ Note: On some Samsung TVs 2016-2017 release MHL It only works after you update your firmware. Check the version in the Support menu. โ Update of the PO.
Method 2: DisplayPort Alt Mode for Xiaomi USB-C)
Xiaomiโs modern smartphones (starting with the Mi 9 and Redmi) K20) Supports DisplayPort Alt Mode protocol, which transmits video signals directly through the USB-C. Advantages of the method:
- โก No Lag โ Ideal for Games and Videos.
- ๐ฎ Support for permits up to 4K@60Hz (on flagships).
- ๐ No external food is required (most of the time).
What you need:
- ๐ Cable USB-C โ HDMI DisplayPort Alt Mode (e.g. Anker PowerExpand or Baseus) 8K). Cables: Cheap cables for 300-500โฝ usually!
- ๐บ Port TV HDMI 2.0 or newer.
Instructions:
- Connect the cable to your smartphone and TV.
- On the TV, select the source. HDMI (is usually automatically determined).
- On the smartphone will appear notification โConnected to the external displayโ โ tap it and select the duplication mode.
If the picture doesn't appear:
- ๐ Try another one. HDMI-port on the TV (better) HDMI 2.0/ARC).
- ๐ฑ Include in the developer settings the option Debugging by USB (Sometimes helps with recognition problems).
- ๐ง Update the TV firmware โ older versions may not support Alt Mode.
How to check if your cable supports DisplayPort Alt Mode?
| Problem. | Possible cause | Decision |
|---|---|---|
| Black screen on TV | The cable does not support Alt Mode. | Buy a Certified Cable (Look for Logo) VESA) |
| Low resolution (720p) | Television restricts the input signal | Select the TV menu HDMI UHD Color โ On. |
| The sound is only through the phone. | HDMI-TV port does not support audio | Connect a separate cable 3.5mm โ RCA Or use a Bluetooth speaker. |
Method 3: USB-OTG + streaming applications (if) MHL doesn't work)
If your Xiaomi is not supported MHL Or Alt Mode, but the TV has a USB-Port, you can try to transfer media files directly through the OTG-This method doesn't duplicate the screen, but it allows you to view photos, videos and music.
What do you need?
- ๐ OTG-Adapter (e.g. Xiaomi) USB-C to USB-A).
- ๐ Files on a smartphone in folders DCIM, Movies or Music.
- ๐บ Television with support for playback through USB (formats: MP4, MKV, JPG).
How to connect:
- Connect. OTG-smartphone adapter.
- Insert the flash drive into the adapter (or connect directly to the TV if there is a port). USB-A).
- Copy files from your smartphone to a flash drive (use a file manager, such as Mi File Manager).
- Insert the flash drive into the TV and select the source USB.
Limitations of the method:
- ๐ซ No screen duplication โ only viewing files.
- ๐ต Not all video formats are supported (e.g..mkv with codec) H.265 may not reproduce).
- ๐ฑ It is impossible to stream stream streaming services (YouTube, Netflix).
๐ก
If the TV canโt see the flash drive, format it into FAT32 (Not exFAT!) via smartphone: go to Settings โ Warehouse โ Format as internal memory (only for empty drives!).
Method 4: Wireless alternative - Miracast USB (for TV without Wi-Fi)
If your TV doesnโt support Wi-Fi, there is one. USB-port, you can use it USB-Miracast adapter (e.g. Microsoft Wireless Display Adapter or AnyCast) M2 This method allows you to broadcast the screen Xiaomi without HDMI, requires:
- ๐ USB-port on the TV (to power the adapter).
- ๐ถ Miracast support on your smartphone (all Xiaomi on the phone) MIUI 12+ support).
- ๐ Adapter with Realtek chip RTL8723 or Broadcom BCM43 (Check before buying!).
Instructions:
- Connect the Miracast adapter to USB-television-port.
- On your smartphone, open Settings โ Connection and Sharing โ Screen Transfer.
- Select the adapter name from the list (e.g. AnyCast-XXXXX).
- Confirm the connection on the TV (selecting the source may be required) USB Screen Mirroring).
Challenges and solutions:
- ๐ 1โ2 second delay: common to all Miracast adapters, not suitable for games, but tolerated for movies.
- ๐ต No audio: in the adapter settings (if any) select Audio Output โ HDMI.
- ๐ซ "Device not found": restart the adapter (pull/paste back) and turn on the smartphone Developer Mode โ Wi-Fi debugging.
โ ๏ธ Miracast adapters for 800-1200โฝ Check for a Wi-Fi certificate. CERTIFIED Miracast on packaging. Fakes may not work with MIUI or give out artifacts on screen.
Practical tips: how to improve the quality of the broadcast
Even if you managed to bring the Xiaomi screen to the TV through USB, The quality of the image can be frustrating, like low resolution, jerking, or no sound. Here's how to fix typical problems:
1. Upgrading the permit
If the picture is blurry:
- On your smartphone, go to Settings โ Screen. โ Screen resolution and select the maximum.
- On the TV on the menu HDMI turn on UHD Color and Deep Color.
- For Alt Mode: In the Developer Settings, set the Minimum Width = 1080.
2. Eliminate delay (lag)
If the video is behind the sound:
- For MHL: Use the power supply on 5V/3A (standard 2A may be missing).
- For Alt Mode: Turn off Windows animation (Developer Settings) on your smartphone.
- For Miracast: Reduce resolution to 720p adapter-setting.
3. Turn on the sound through HDMI
If the sound is only coming through the phone:
- In the notification panel, tap the icon HDMI Select to transmit sound to an external device.
- On the TV, check that the source is selected in the sound menu. HDMI ARC.
- For Alt Mode: in Settings โ Sound turn off Bluetooth audio.
๐ก
The most stable broadcast quality is given by DisplayPort Alt Mode (USB-C โ HDMI), But only when using certified cables with chips. VESA or Realtek RTD2173.
Alternative methods (if any) USB doesn't work)
If neither USB-The methods did not work, consider these options:
- ๐ถ Miracast (wireless): works on all Xiaomi MIUI 10+. Turn on the settings. โ Connection and sharing โ Screen transfer and select TV (must support Wi-Fi Direct).
- ๐ Google Cast (Chromecast): If you have a Chromecast or TV with Google built-in TV, Use the Google Home app to stream.
- ๐ฎ HDMI-externally powered adapter: for example, UGREEN USB-C to HDMI 4K portable USB-A It's good for the flagships of Xiaomi (12/13 series).
- ๐ฅ๏ธ DLNA/UPnP: To view media files without duplicating the screen, use BubbleUPnP or LocalCast apps.
Comparison of methods:
| Method | Delay. | Max, permission. | Do I need the Internet? | Difficulty |
|---|---|---|---|---|
| MHL (USB โ HDMI) | No. | 1080p@30Hz | โ No. | Medium |
| DisplayPort Alt Mode | No. | 4K@60Hz | โ No. | Easy. |
| Miracast (USB-adapter) | 1-2 seconds | 1080p@30Hz | โ No. | Medium |
| Google Cast | 2nd-to-3th-second | 1080p@60Hz | โ Yes. | Easy. |
| HDMI-powered adapter | No. | 4K@60Hz | โ No. | Difficult. |