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Seeing "Format Not Supported" on your Samsung TV means the video file you're trying to play uses a codec, container, or resolution that the TV's built-in media player can't decode. This commonly happens with USB playback or media shared over a home network.
What Causes This Error?
Samsung Smart TVs support a specific set of video formats and codecs, and anything outside that list will trigger this error. Typical causes include:
- Unsupported codecs such as certain HEVC, VP9, or AV1 variants on older TV models
- Incompatible container formats, like MKV files with unusual internal encoding
- Resolution or bitrate limits exceeded by 4K or high-bitrate files on older hardware
- DRM-protected files that the TV isn't authorized to decode
- Corrupted video files with damaged headers or metadata
- Outdated firmware lacking updated codec support
How to Fix It
1. Check Samsung's Supported Format List
Visit Samsung's official support site and confirm your TV model's supported video formats, codecs, and resolution limits. This is the fastest way to know if the file is fundamentally incompatible.
2. Update Your TV's Firmware
Go to Settings > Support > Software Update > Update Now. Samsung periodically expands codec support through firmware updates, so an older software version may be blocking playback of files it could otherwise handle.
3. Convert the Video File
Use a free video converter (such as HandBrake) to re-encode the file into a widely supported format like MP4 (H.264 codec). This resolves compatibility issues in the vast majority of cases.
4. Check the File's Resolution and Bitrate
If the file is 4K or has an unusually high bitrate, try converting it to 1080p or reducing the bitrate, especially on Samsung TVs older than 3–4 years, which often have stricter decoding limits.
5. Try a Different USB Drive or Source
Occasionally, the error is related to the USB drive's file system rather than the video itself. Reformat the drive to FAT32 or exFAT and copy the file again.
6. Rule Out DRM Protection
If the file was downloaded from a paid or restricted source, it may include digital rights management encoding that only specific licensed apps can decode. Play it through the original app instead of the TV's native media player.
7. Test With a Known-Compatible File
Play a standard MP4 file to confirm the media player itself is functioning. If that file also fails, the issue may be with the player rather than your original video file.
When to Call for Repair
If your TV fails to play even standard, widely supported formats after a firmware update, the media decoder chip itself may be malfunctioning. A professional technician can run hardware diagnostics to confirm whether a repair or replacement is required.