2 questions · Instant fix
Fix My Speaker Diagnostic
Tell us what happened and what you hear. You'll get the safest first fix, a tone you can play right here, and the guide that explains why.
How the diagnostic works
Most speaker problems come from a few causes: water in the grille, dust and lint, a drop that loosened a part, or a setting. The flow combines your two answers and picks the least risky step first, so you never start with something that could make things worse.
- Water + muffled or crackling: a 165 Hz pulse, as used by the Water Eject tool.
- Dust or lint: a gentle 200–500 Hz sweep, then a soft dry brush. See the Speaker Cleaner routines.
- One side only: a left/right check, then the full Speaker Test.
- After a drop or complete silence: a hardware warning, because tones cannot fix broken parts.
For the full background, read why phone speakers sound muffled and why speakers crackle. Our testing approach is on the methodology page.
Safety boundaries
Never use cleaning tones with headphones or earbuds in your ears. Don't heat, shake hard or poke the speaker with pins. If your phone was in salt water or shows signs of corrosion, contact the manufacturer.
Frequently asked questions
+How does the speaker diagnostic decide the fix?
It matches what happened (water, dust, a drop or unknown) with what you hear (muffled, crackling, silent or one side) and suggests the safest first step for that combination.
+Can a sound tone fix a damaged speaker?
No. Tones can help shake out water or loose dust, but they cannot repair torn cones, damaged coils, corrosion or a broken connector. The diagnostic flags those cases as likely hardware damage.
+What volume should I use?
Start around 50–70% on a phone speaker and never use headphones for cleaning tones. Stop if the sound becomes harsh or painful.
+Does the diagnostic record audio?
No. Everything runs in your browser with Web Audio. The microphone is never requested and nothing is uploaded.