How do iPhone sensors work

Water and other liquid damage to the iPhone or iPod is not covered by the warranty

If an iPhone or iPod has been damaged by liquid (such as coffee or soda), Apple's one-year limited warranty does not cover the repair. Under certain circumstances, however, the ´┐╝Consumer protection laws grant you certain rights. The iPhone and most iPod models built after 2006 have a built-in liquid sensor (LCI) that indicates whether the device has come into contact with water or liquids containing water.

The iPhone and most iPod models have liquid sensors that can be seen from the outside.

An LCI is activated as soon as it comes into contact with water or a liquid containing water. The sensor is usually white or silver in color, but when it comes into contact with water or a liquid containing water, it turns completely red. An LCI will not activate due to excessive humidity or changes in temperature in the vicinity of the product.

To find out if the LCI in your device has come into contact with a liquid, find your device in the table below, then find the liquid sensor (s) on your device. To make the LCI more visible, use a lighted magnifying glass and change the angle of the light or device until you can see the LCI.

The table shows where the sensor (s) are located and what they look like after contact with liquid:

productPosition of the liquid sensor
iPhone 12, iPhone 12 mini
iPhone 12 Pro
iPhone 12 Pro Max
iPhone 11
, iPhone 11 Pro, iPhone 11 Pro Max
iPhone XS, iPhone XS Max, iPhone X
iPhone XR
iPhone 8, iPhone 8 Plus
iPhone 7, iPhone 7 Plus
iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus
iPhone 5, iPhone 5c, iPhone 5s, iPhone SE
iPhone 4, iPhone 4s
iPhone 3G, iPhone 3GS


iPod touch *

iPod nano *

iPod classic
iPod shuffle (3rd generation)

If the LCI is red and you are not sure whether liquid damage caused the problem with your device, contact AppleCare or an authorized iPhone service provider for further assistance.

* The iPod nano (7th generation) and iPod touch (5th generation) do not have a visible liquid sensor.