The warning protects the USB port
Samsung phones can block wired charging when moisture or debris is detected around the connector. This is separate from water trapped near a speaker.
Disconnect the cable
Remove the charger, switch off the phone and allow complete drying with natural airflow, following Samsung’s guidance. Do not use a hair dryer, compressed air or metal objects in the connector.
Use sound only for muffled audio
Only when the phone is stable and safe to use, consider one moderate-volume nBeats cycle for a muffled speaker with its grille facing down. It will not clear the USB sensor or make wired charging safe.
When the alert will not clear
After the port is fully dry, restart the phone and inspect for visible debris without inserting anything. Persistent alerts should be checked by Samsung support or a technician.
After the port is fully dry, restart the phone and inspect for visible debris without inserting anything. Persistent alerts should be checked by Samsung support or a technician.