Water in the charging port
There is no tool on this page, on purpose. A tone cannot touch the port — it has no speaker to vibrate. This is what works, in the order to do it.
Do this first
- Unplug and power off. Water across the charging pins plus current equals corrosion. Turning the phone off removes the current.
- Hold it port-down and tap. Tap the back of the phone firmly against your palm a dozen times, port facing the floor. Most of a splash comes out here.
- Blot the opening. The corner of a paper towel or a dry cotton bud at the mouth of the port. Do not push anything metal inside.
- Leave it port-down, in moving air. Propped upright on a shelf near a fan, port facing down, for at least 30 minutes — longer for a dunk. Not on a radiator, not in the sun, not under a hairdryer.
- Charge wirelessly meanwhile. MagSafe or any Qi pad bypasses the port entirely and is safe while it dries.
- Plug in only when the alert is gone. If the phone still says liquid detected after 24 dry hours, the problem is not water — see below.
“Liquid detected” but the phone is dry
This is the most common version of the problem on Reddit, and it is nearly always pocket lint packed at the bottom of the port, bridging two pins. Fix:
- Power off. Shine a torch into the port; compacted lint looks like a grey felt pad at the back.
- Use a plastic toothpick, wooden cocktail stick or the pick end of a floss pick. Scrape gently along the back wall and sides. Never a metal pin or paperclip — the pins bend and the phone stops charging for good.
- Blow it out with a cheap rubber bulb blower. Skip canned air; the propellant leaves moisture and can trigger the same warning.
- Try a different, known-good cable. A frayed or damp cable reports as liquid too.
Salt water, sea water, drinks
Anything that is not clean water leaves residue that conducts and corrodes after it dries. Rinse the port briefly with clean water (yes, more water), then dry as above. For sea water, many people report success with 91% isopropyl alcohol on a soft brush inside the port, then a bulb blower — it displaces the water and evaporates clean.
Speaker muffled too?
The speaker is the one place sound does help. Run the 165 Hz tone once the phone is back on — it pushes water out of the speaker grille while the port air-dries.