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 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. Why can't I find or delete files in the music player? Why are the files in my MP3 not organized in alphabetical order? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started