Why can't I adjust the volume to the maximum level? Category : Setup / Operation If the volume level still remains the same or a warning message pops up after you press the " " button to adjust the volume, please ensure that the [Volume limit] setting is disabled. Route: SETTINGS > Volume Limit > off Is the answer helpful? Related Why isn't the countdown for the remaining recording time of my Digital Music Player running? Lyrics are not displayed correctly on my MP3. How can I set the lyric syncing function? My file format is supported by the MP350, and the file can be played on my computer, but I get error messages when I play it on the MP350. Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started