Understanding the Water Damage Indicator on Your Phone
2026-10-14 · Marion Phone Repair
Inside every modern smartphone is a small sticker that changes color when it contacts liquid. This is the Liquid Contact Indicator (LCI), commonly called the water damage indicator. It exists so repair technicians and warranty evaluators can quickly determine whether a phone has been exposed to liquid. If you have ever been told your phone has water damage during a repair visit, this indicator is how they knew — sometimes even when you had no idea the phone got wet.
What the indicator looks like
In its normal state, the LCI is a solid white or silver sticker, sometimes with white X patterns or dots. This indicates no liquid contact
When the indicator contacts liquid, it changes to a pink or red color. This color change is permanent and cannot be reversed — it does not dry back to white
The indicator is small, roughly 2 to 4 millimeters in diameter. It is easy to miss if you do not know where to look
Some phones have multiple indicators in different locations to detect liquid entry from various points
Where to find it
iPhone
The LCI on iPhones is located inside the SIM card tray slot. Remove the SIM tray using the included SIM ejector tool (or a straightened paperclip) and look inside the slot with a flashlight
On models without a SIM tray (iPhone 14 US models and later eSIM-only models), the indicator may be visible through the SIM tray opening area or is only accessible during disassembly
The indicator appears as a small dot visible inside the slot. White or silver means no liquid contact. Pink or red means liquid was detected
Android phones
Location varies by manufacturer and model. Common locations include inside the SIM card tray slot (similar to iPhone), inside the USB-C port area, or under the battery cover on older phones with removable batteries
Samsung phones typically have the LCI inside the SIM tray slot. You can check it the same way as on an iPhone — remove the SIM tray and look inside with a light
Google Pixel phones have the indicator visible inside the SIM tray slot on most models
If you cannot find the indicator, the phone manufacturer support page for your specific model usually documents the LCI location
What triggers the indicator
Submersion: Dropping a phone in water, a pool, a toilet, or any body of liquid will trigger the indicator
Heavy rain or splashing: Significant water exposure from rain, spills, or splashing can trigger the indicator even on phones with water resistance ratings
Humidity: Prolonged exposure to very high humidity — carrying the phone in a steamy bathroom during long showers, working in environments with constant steam or moisture — can sometimes trigger the indicator over time
Sweat: Phones carried in pockets during intense exercise can accumulate enough moisture from sweat to trigger the indicator
Condensation: Moving a phone rapidly between very cold and warm environments causes condensation inside the phone. Repeated condensation cycles can trigger the indicator
Water resistance vs waterproof
Many modern phones carry IP67 or IP68 water resistance ratings, but the LCI can still be triggered:
IP67: Protected against immersion in water up to 1 meter deep for 30 minutes under controlled laboratory conditions
IP68: Protected against immersion beyond 1 meter (typically 1.5 to 6 meters depending on manufacturer claims) for 30 minutes
These ratings are tested with fresh, still water at controlled temperatures. Real-world conditions differ — pool chemicals, salt water, soap, hot water, and water pressure from faucets or showers can exceed what the seals are designed to handle
Water resistance degrades over time. The adhesive seals that keep water out weaken with age, temperature cycling, drops, and normal wear. A phone that was IP68 when new may have reduced water resistance after two years of use
A triggered LCI on a water-resistant phone does not necessarily mean the water resistance failed. The indicator can be triggered by moisture that enters through normal openings (speaker grilles, microphone ports) without causing internal damage
What a triggered indicator means for warranty
Most manufacturer warranties exclude liquid damage. A triggered LCI is typically used as evidence that liquid contact occurred, and the manufacturer may decline to cover repairs under warranty
Apple: If the LCI shows liquid contact, Apple classifies the issue as liquid damage and warranty repair is typically denied. Out-of-warranty liquid damage repair through Apple is more expensive than standard out-of-warranty repair
Samsung: Similar policy — a triggered LCI indicates liquid contact and warranty coverage may be denied for the reported issue
The triggered indicator does not necessarily mean liquid caused your current problem. A phone could have a triggered LCI from a minor splash months ago and develop an unrelated hardware issue later. However, once the indicator is triggered, proving that a specific problem is not liquid-related is difficult
Phone insurance plans vary in their liquid damage coverage. Some cover liquid damage with a deductible. Others exclude it entirely. Check your specific plan terms
Can you reset or replace the indicator
The LCI color change is designed to be permanent. The chemical reaction that turns it pink or red cannot be reversed by drying, cleaning, or any consumer-accessible method
Attempting to bleach, repaint, or replace the indicator to hide liquid contact is considered warranty fraud if the phone is subsequently submitted for warranty repair
Repair technicians are trained to identify tampered indicators. A missing, altered, or replaced indicator is treated the same as a triggered one
What to do if your indicator is triggered
Phone is working normally: A triggered LCI with no symptoms does not require action. The indicator shows that liquid contact occurred at some point, but if the phone is functioning properly, no repair is needed. Be aware that the triggered indicator may affect future warranty claims
Phone has symptoms after liquid exposure: If the phone shows problems after getting wet — distorted audio, erratic touch response, charging issues, camera fog, or failure to power on — the liquid may have caused internal damage that needs professional repair
Do not try to dry the phone with rice: The common advice to put a wet phone in rice is ineffective. Rice does not remove moisture from inside a sealed phone. It can introduce rice dust and starch into ports and openings, potentially making things worse. Instead, power the phone off, do not charge it, and bring it to a repair professional
Do not use a hair dryer or heat: Applying heat to dry a wet phone can push moisture deeper into the device and damage heat-sensitive components. Air drying at room temperature is safer, but professional service is the most reliable approach for phones with actual liquid damage
Liquid damage repair
Professional liquid damage repair typically involves opening the phone, disconnecting the battery, cleaning the logic board and connectors with isopropyl alcohol or ultrasonic cleaning, drying thoroughly, and reassembling
Success depends on what liquid entered the phone, how long it was exposed, and whether the phone was powered on while wet. Fresh water with quick professional treatment has a better outcome than salt water or prolonged exposure
The longer a wet phone remains powered on, the more damage occurs. Electrical current flowing through wet circuits causes corrosion and short circuits. Powering off immediately after liquid exposure is the single most important step
Need help with water damage?
If your phone was exposed to liquid, the water damage indicator has been triggered, or you are experiencing symptoms that may be related to moisture, Marion Phone Repair can assess the damage, perform professional liquid damage cleaning and repair, and give you an honest evaluation of whether the phone can be saved.