Symptoms
- Buzzing sound during calls or media playback
- Buzzing gets louder at higher volume
- Sound is fine with headphones but not the speaker
- Buzzing happens even when phone is idle with a notification
Likely causes
- CommonLoose case vibrating against the phoneSome cases resonate against the speaker output, creating a buzz.
- CommonDebris in the speaker grille vibrating with soundSmall particles can rattle against the speaker at certain frequencies.
- PossibleVolume set too high for the speaker's clean rangePushing bass-heavy audio at max volume can cause buzzing distortion.
- PossiblePhone resting on a hard surface that vibrates with soundA table or hard surface under the phone can amplify vibration into a buzz.
- Less commonDamaged speaker coneA torn or warped speaker cone will buzz consistently regardless of these fixes.
What to do
- Remove the case and test if the buzzing continues without it.
- Pick the phone up off any hard surface like a table or nightstand and test again.
- Lower the volume and see if the buzzing decreases or stops.
- Inspect the speaker grille for debris and clean gently with a dry, soft brush.
- Test with headphones to confirm whether the source audio itself has an issue.
- Try a different case, if the buzzing only happens with a specific one.
- Play different types of audio (music, voice, alarm) to see if buzzing is limited to bass-heavy sound.
- If buzzing continues at all volumes, without a case, and off any surface, the speaker hardware likely needs replacement.
Tools and parts
- Soft-bristled brush
Replacement phone speakerSearch: “phone loudspeaker replacement”
When to call a pro
If buzzing persists without a case, off any surface, and at low volume, have the speaker checked for hardware damage.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.