Symptoms
- A brief loud pop or click when a call connects
- Sound then plays normally for the rest of the call
- Happens consistently on outgoing or incoming calls
- No other audio issues during the call itself
Likely causes
- CommonNormal audio circuit activation soundSome phones make a brief click or pop as the audio amplifier turns on for the call, which is generally harmless.
- CommonVolume set very high when the call connectsA sudden burst of audio at high volume can sound like a pop or click.
- PossibleBluetooth device connecting mid-ringThe handoff to a Bluetooth device as the call starts can create a brief pop.
- PossibleSpeaker cone settling after being idleSpeakers that haven't been used in a while can pop briefly when reactivated.
- Less commonEarly sign of speaker wearIf the pop grows louder or is joined by other distortion, it could indicate developing speaker damage.
What to do
- Lower the call volume slightly before answering or right as a call connects.
- Check if the pop happens with Bluetooth connected versus using the phone speaker directly.
- Note whether the pop is followed by any other odd sounds during the call.
- Restart the phone to rule out a software-related audio trigger.
- Test with several different calls to see if the pop is consistent or occasional.
- Update the phone's software in case of a known audio-related bug.
- If the pop is very loud or sounds like distortion rather than a click, lower media and ringtone volumes.
- If the pop grows more noticeable or the speaker starts distorting elsewhere, have the speaker checked.
When to call a pro
If the pop becomes louder over time or is accompanied by other distortion, have the speaker checked by a professional.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.