The main reason you can't play HEVC (High-Efficiency Video Coding) files on your Samsung smart TV is that this video codec is not natively supported by most Samsung TV models. HEVC is a more efficient and higher-quality video compression standard compared to the more widely supported H.264 codec. While newer high-end Samsung TVs may have HEVC decoding capabilities, many older and mid-range models do not.
To play HEVC files on your Samsung smart TV, you'll need to convert them to a compatible format. A few options include using a video conversion software like WonderFox HD Video Converter Factory Pro or EaseFab, which can transcode HEVC files to H.264 or other Samsung-friendly formats. Alternatively, you can use a media streaming app like Plex that can automatically transcode unsupported video files on-the-fly before playing them on your TV. With a simple conversion process, you'll be able to enjoy your HEVC video content on your Samsung smart TV.