LG TVs allow you to easily enjoy local digital media files via USB. But when playing certain .mp4 files on your LG TV, you may encounter playback errors such as black screen, no audio, or no video. This article will answer why these errors occur and show you how to play MP4 correctly on your LG TV. Please read on.
Michelle Michelle | Updated on Dec 15, 2023

Why Are Some MP4 Files Not Playing on LG TV?

Although MP4 is one of the video formats supported by LG TV, if the codec within MP4 is not supported, it will not play on LG TV.

It is important to note that MP4 videos can be encoded by different codecs, such as MPEG-4, H.264, HEVC, etc. However, LG TVs do not support all of these codecs, such as HEVC (unless the content is officially provided by LG). Meanwhile, LG TVs also have poor support for Dolby Digital and DTS audio. Therefore, you may find that some MP4s play without image or sound.

The good news is that the solution to this problem is simple - you just need to convert the unplayable MP4 to a format supported by your LG TV. Please read on.

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With various preset TV profiles, WonderFox HD Video Converter Factory Pro can help you convert MP4 to LG TV-compatible format in one click, allowing you to play MP4 videos on your LG TV easily. It is easy, fast, and high quality. Try the software now!

Solution 1: Convert MP4 to Play on LG TV

WonderFox HD Video Converter Factory Pro is a professional program that handles all kinds of video conversions. It provides over 500 output options, allowing you to quickly convert MP4 to a format suitable for LG TV. Additionally, it allows you to manually modify the video codec, bitrate, resolution, frame rate, size, etc. to suit the specific video specifications of your TV.

The program is user-friendly and can perform video conversion in a few clicks. Now you can download download the software and follow the steps.

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Step 1. Start the software on your PC and open the “Converter” module. Next, click “Add Files” to import your unplayable MP4 file into the program.

Step 2. Hit on the format image on the right to open the output format list. Next, navigate to the “LG” tab and select the profile that fits your TV model.

Alternatively, you can go to the “Video” format section and select “MP4” as the output format. Then open “Parameter settings” and set the Video Encoder as MPEG4 or H264, and the audio encoder as MP3 or AAC.

Step 3. Click the ▼ button to pecify an output path at the bottom of the interface.

Step 4. Finally, click “Run” to complete the conversion. Now you should have no problem playing the MP4 video on your LG TV.

Convert MP4 to Play on LG TV

Solution 2: Stream MP4 to LG TV via Plex

Plex is a media streaming tool that can help you stream any video to your LG TV even if the video is not supported. This is because Plex can transcode/convert the video to a format supported by your TV while streaming in real-time. To use Plex, you must set up a Plex server on your computer or similar device, import media into the Plex library, and then download the Plex app on your LG TV to access the media library. Here are the brief steps you can follow:

Step 1. Register and install Plex Media Server on your computer, NAS, or other device.

Step 2. Follow the on-screen instructions to complete server setup. Remember to add your media files to the Plex library.

Step 3. Go to the LG Content Store on your LG TV, then search for and install the Plex app.

Step 4. Open the Plex app and click Sign in. It will display a 4-digit code.

Step 5. Open the Plex activation site (plex.tv/link/) and enter the code. Click Link.

Step 6. After activating the Plex app, you can now browse the media library and play your desired videos.

Stream MP4 to LG TV via Plex


Converting MP4 to LG TV supported format is the key to play MP4 videos smoothly on LG TV. With the help of the video converter and the streaming app, you should have no problem achieving this conversion. I hope this article was helpful to you. Thanks for reading. Have a great day!

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