Your iPhone says liquid detected in the port: what to do now

From the iPhone XS onwards, the phone checks whether there is moisture in the Lightning or USB-C port when you plug something in. The exact wording depends on the port. With Lightning it usually says “Charging Not Available” when you charge, with USB-C it says “Liquid Detected in USB-C Connector” or simply “Liquid Detected”.

While the warning is active, the iPhone will not charge by cable, and accessories on the port will not work either. That is intentional, because electricity and moisture together attack the contacts. According to Apple, the port and the cable can corrode and be permanently damaged.

Apple describes a clear order of steps for this case. We stick exactly to these instructions here, because they are made for the device and put nothing at risk.

If you need power in the meantime, you can charge wirelessly. Apple recommends a Qi-certified charger for this, and the back of the iPhone should be dry.

This applies when only the port has got wet, for example from rain or splashes. If the whole phone was in water, it is a different matter. What to do then is explained in the article on first aid for water damage.

In an emergency you can also dismiss the warning, and the iPhone will then charge by cable despite the moisture. Apple explicitly offers this only for emergencies and in the same breath points out the risk of corrosion. So please do not make a habit of it, because that is exactly what the block is meant to protect the port from.

Hair dryers, radiators and compressed air are off limits. Apple explicitly advises against heat sources and against blowing air into the port.

Nothing belongs inside the port itself, neither a cotton bud nor a piece of kitchen paper. Very fine contacts sit close together in there, and they bend easily.

A bag of rice does not help either. Apple advises against it, because small grains can get into the port and damage the iPhone.

Sometimes the warning appears even though the iPhone has not got wet anywhere. Apple names accessories as the first cause, because a faulty cable or adapter can also trigger the message. So try a different cable, ideally one that reliably charges another device.

Moisture can also get into the phone without a puddle. When you come in from the cold into a warm flat in autumn, condensation can form, and it is similar after a shower in a steamy bathroom. The message then usually disappears on its own once the iPhone has been lying in dry air for a while.

If the warning stays with a dry phone and with every cable, the cause lies in the port itself. Then compacted lint or deposits on the contacts are possible culprits. How to recognise a dirty port is explained in the article on cleaning the charging port.

Bring the iPhone in if the warning still appears after a day of drying, and with every cable. The same applies if you see greenish or white deposits in the port, or if the phone was properly submerged in water beforehand.

We take a look at the port and find out whether cleaning is enough or the charging port needs replacing. The diagnosis is free, even if you decide against the repair afterwards. For some repairs you can wait instead of leaving the phone with us.