No sound from the bottom speaker on your Galaxy S9 Plus? That is your loudspeaker, and it is crucial for music, ringtones, and speakerphone. At My Cell Repair in Santa Rosa, California, we repair Galaxy S9 Plus loudspeakers the right way. We will test whether it is a blown speaker or another issue, then replace the loudspeaker module if needed. You will leave with full, clear sound again. Most loudspeaker repairs are finished the same day.