Symptoms
- Static or buzzing only happens while plugged into a charger
- Unplugging the charger clears the sound immediately
- Issue happens with wired headphones while charging
- Different chargers produce different levels of noise
Likely causes
- CommonCheap or damaged charger causing electrical interferenceLow-quality or worn chargers can leak electrical noise into the phone's audio circuit.
- CommonDamaged or low-quality charging cableA frayed or poorly shielded cable can introduce interference during charging.
- PossibleWall outlet or power strip with poor groundingSome outlets or power strips have grounding issues that introduce electrical noise.
- PossibleWireless charger interference with call audio if speakerphone is near itSome wireless chargers can create audible interference with nearby speakers.
- Less commonPhone's internal charging circuit issueAn internal fault could cause interference during charging specifically.
What to do
- Unplug the charger during a call to confirm the static is tied to charging.
- Try a different, ideally original or certified, charger and cable.
- Test with a different wall outlet or power strip.
- If using a wireless charger, move the phone away from it during calls.
- Inspect the charging cable for visible fraying or damage.
- Try charging with a different power adapter (the brick itself) to isolate cable versus adapter.
- Clean the charging port for debris that might affect the connection.
- If static persists across multiple certified chargers and cables, have the phone's charging circuit inspected.
Tools and parts
- Flashlight
Certified replacement charger and cableSearch: “certified phone charger and cable”
When to call a pro
If static continues across multiple certified chargers and outlets, have the phone's internal charging circuit checked professionally.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.