By default, the speakers are on unless you mute them.
In order to remove dust by acoustic wave, the following operations are required:
1. Open the video software and enter "Clear Ash" in the search bar;
2. Turn the speaker volume to the maximum after entering the interface;
Wait until the play is over.
If the acoustic wave can't meet the requirements of dust removal, then dust removal can be done manually. The steps are as follows:
1. Clean the mesh part of the mobile phone speaker with a hair dryer and a hair dryer (cold air file);
2. Take toothpicks, steel needles and other slender tools, stick double-sided tape on your head, and thoroughly clean the dust on the mesh of the speaker;
3. Use a dry toothbrush, cotton swab and other tools to remove the dust from the gap at the edge of the speaker.