Speaker & Mic Cleaner
Plays tuned sound waves that vibrate your speaker to push out dust, lint, and trapped water — and tests your microphone.
Ready
Low 60–200 Hz sweep centred on 165 Hz — maximises membrane travel to push trapped water out.
Speaker
Volume85%
Hold the phone with the speaker facing down so gravity helps debris fall out. Run for 15–30 seconds. Keep the volume sensible to protect your hearing and your speaker.