How to play MP4 video on Samsung Galaxy S9/S9 plus?

Failed to play MP4 video files on Samsung Galaxy S9/S9 plus? Your MP4 files probably contain an video or audio codec that your device doesn’t support. If that’s the case, you will need to convert them first. This guide explains how to do this in detail.
get Samsung S9/s9 plus playing MP4 movies
Let’s see a user issue first:
“Any ideas why my Samsung Galaxy S9 doesn’t play MP4 videos. I’ve downloaded an MP4 onto my SD card. It turns up in the ‘Video Player’ widget/app. When I go to play it I met with “Sorry, this video cannot be played”. All the blurb says that MP4s are supposed to be OK. Strangly I earlier put an AVI video onto the same SD card. I can play this AVI video fine in the same ‘Video Player widget/app. Anyhow does anyone know how I can get MP4 to play on my Samsung Galaxy S9? Any help would be appreciated. Thanks in advance.”

MP4 is among Samsung Galaxy S9/S9 plus supported video formats, however, some users still encounter incompatibility issues when playing MP4 files on Samsung Galaxy S9/S9 plus. Why does this happen? The reason is that MP4 is a container format which may contain multiple video and audio streams encoded with various codecs. Although Samsung Galaxy S9/S9 plus is compatible with MP4 video files, it also requires the MP4 file to be encoded in the way that is recognized by your particular device model. Some MP4 videos will not play on Samsung Galaxy S9/S9 plus due to the failure of codec recognition. In that case, you will need to convert the files to Samsung Galaxy S9/S9 plus supported H.264 MP4 format first. Check a guide on how to do this below.

How to convert incompatible MP4 files for Galaxy S9/S9 plus?

Here’s what you need
HD Video Converter
does Galaxy S8 support .movproblems watching MOV files on S8

Step 1: Run HD Video Converter as the best Galaxy S9/S9 plus Video Converter. Click ‘Add File’ button to load source files that you want to convert. You can add multiple files into it at a time to do batch conversion.
get Samsung S9/s9 plus playing MP4 movies

Step 2: Select output format for Galaxy S9/S9 plus
From ‘Profile’ list, navigate to ‘Samsung’ and opt ‘Samsung Galaxy S8 (*.mp4)’ as target format. This profile is suitable for both S8 and S9. If you are using S9 plus, you can choose ‘Samsung Galaxy S8+ (*.mp4)’ as output format.

Step 3: Custom video and audio settings
If necessary, you can click ‘Settings’ button and go to ‘Profiles Settings’ panel to modify video and audio settings like video encoder, resolution, video bit rate, frame rate, aspect ratio, audio encoder, sample rate, audio bit rate, and audio channels. 3D settings are also available.
get Samsung S9/s9 plus playing MP4 movies

Step 4: Click ‘convert’ to start format conversion
As soon as the conversion is complete, you can click ‘Open Folder’ button to get the exported H.264 AAC MP4 files for playing on your Samsung S9/S9 plus with optimal performance, no audio incompatible issues will happen again.

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