Many have faced such a problem: during a call, the interlocutor is very hard to hear, as if he is talking on a speakerphone and is far from his gadget. This indicates that the top speaker of the phone is clogged. There is no need to run to the master, because this problem can be easily fixed by yourself.
Grains of sand could get into the speaker grid (if you recently rested by the sea), it could get clogged with dust or dirt. You just need to clean the speaker of the phone. There are several ways to clean the speaker that don't even require disassembling the unit.
Try brushing the speaker with an unattended toothbrush in a circular motion on the speaker mesh. It is very important that the bristles of the brush fall into the holes of the mesh in order to clean the dirt. But you should not overdo it, so as not to damage the mesh.
Didn't brushing help? A needle will help. This is where you need to be as careful as possible. Poke a needle into each hole in the mesh to clear the dirt out. You need to push the needle no deeper than half a millimeter! After this and the previous cleaning method, you need to attach chewed chewing gum to the speaker mesh so that the remaining dirt sticks to it. Use the gum several times to collect more dirt.
If the surface cleaning of the speaker did not work, then you will have to disassemble it to clean the mesh. You can rinse it with hydrogen peroxide. If cleaning does not help, you will have to replace the part. But it is better not to risk fixing the phone, but to take it to a service where it will be diagnosed and repaired.
