Symptoms
- Visible green, white, or crusty residue inside the port
- Charging is intermittent or has stopped working
- Port may have a slightly off smell
Likely causes
- CommonPast water or humidity exposure that wasn't fully driedEven a small amount of moisture left in the port oxidizes the metal contacts over time.
- PossibleSweat exposure from workouts or humid climatesRepeated moisture without full drying can slowly corrode contacts.
What to do
- Power off the phone before doing anything else to avoid a short circuit.
- Do not plug in a charger until the corrosion is cleaned — this can worsen the damage.
- If you're comfortable, gently clean visible corrosion with a dry soft brush or a cotton swab lightly dampened with isopropyl alcohol (90%+), then let it fully air dry.
- Avoid metal tools that could scratch the contacts or push corrosion in deeper.
- If corrosion is heavy or charging still doesn't work after cleaning, professional cleaning or port replacement is the safer route.
Tools and parts
- Isopropyl alcohol (90%+)
- Cotton swab
- Soft brush
Charging port flex cableSearch: “charging port replacement for your model”
When to call a pro
If corrosion is extensive or cleaning doesn't restore charging, a repair shop can professionally clean or replace the port.
Safety
Use caution
Never plug a charger into a visibly corroded port — this risks a short circuit. Power off before cleaning.