Identify the correct opening first

The bottom edge can contain a loudspeaker, microphones and decorative holes that look similar. The top slot is usually the call receiver. Check the phone manual or manufacturer diagram before touching an opening. Cleaning the wrong hole aggressively can damage a microphone rather than improve a speaker.

Remove a case and screen protector temporarily. Sometimes the accessory—not the phone—is collecting lint or covering part of the sound path.

Dry-brush method for surface debris

Turn the phone off and unplug it. Use a clean, completely dry, soft-bristled brush. Hold the opening downward and make light strokes across the grille so loosened particles fall away. Do not press the bristles into the mesh. Pause often and inspect under bright light.

Clean the case separately before reinstalling it. A dirty case can put lint back onto the opening immediately. When finished, turn the phone on and test speech or a ringtone at moderate volume.

What not to put into a speaker grille

Avoid needles, pins, SIM tools, toothpicks and metal brushes. They can puncture mesh or a protective membrane. Avoid liquid cleaner, bleach and oil. Avoid canned compressed air because pressure can force debris or moisture deeper and may damage delicate parts.

Adhesive putty and tape can leave residue or pull at mesh. A vacuum nozzle creates uncontrolled suction. Direct heat can weaken seals and affect the battery. “Fast” methods are often the methods with the highest damage risk.

  • No sharp object through an opening.
  • No liquid poured or sprayed into a grille.
  • No high-pressure air.
  • No aggressive scrubbing.

Cleaning after water or sticky liquid

For freshwater, wipe the exterior and allow airflow with the opening downward. A water-eject sound may help near the loudspeaker. For salt water, soda, juice or other residue-forming liquids, follow manufacturer instructions and consider service because material can remain after the water evaporates.

Do not charge while the connector may be wet. Surface cleaning does not prove the inside is dry.

When professional cleaning is the safer choice

Choose service when debris appears behind damaged mesh, the phone has been opened before, sound changed after a hard drop, or cleaning produces no improvement. A technician can inspect the assembly without repeated pressure on the exterior grille.