Have you ever encountered this issue? You accidentally knocked your iPhone off the table the night before, and it seemed fine at first. But when you woke up the next morning, the screen showed an ink-like black-purple bleed. Don't panic—that's LCD liquid leakage. Today, DIYPHONE will analyze the specific symptoms, causes, and repair steps for liquid leakage faults to help you resolve this common problem.

I. Symptoms and Causes of iPhone Liquid Leakage
iPhone liquid leakage originates from either the liquid crystal within an LCD panel or the electrolyte from an iPhone battery; both substances can cause irreparable hardware damage to internal circuitry.
1. LCD Screen Liquid Leakage
LCD screen liquid leakage refers to the leakage of liquid crystal from the display layers, manifesting as the following visual abnormalities:
a. Visual Abnormalities: The most direct sign is the appearance of black spots, rainbow patches, or "ink-bleeding" areas on the screen. These areas are usually irregular and distort the display.
b. Touch Malfunction: The touch function in the affected area will fail, leading to unresponsive zones or ghost touches. In severe cases, the entire digitizer may fail.
c. Display Abnormalities: The leakage zone shows abnormal colors; some parts may be completely black, but the phone logic board may still be active (indicated by vibrations or sounds).
2. Battery Liquid Leakage
Although less common, battery leakage requires immediate attention. Symptoms include:
a. Overheating: Internal chemical reactions lead to excessive heat, which may pose a fire risk.
b. Swelling: Leaking batteries are often accompanied by casing expansion, manifested as a noticeable bulge in the phone's back cover. At this point, the battery is volatile.
c. Odor and Seepage: Leaked electrolyte emits a corrosive, pungent chemical smell. This substance is toxic and should be cleaned immediately upon contact.

II. Troubleshooting and Solutions
1. Solutions for LCD Screen Liquid Leakage
When a iPhone experiences screen liquid leakage, the timing and method of handling are crucial. Correct operations can prevent the situation from worsening.
a. Power Off Immediately
Shut down the device to avoid short-circuiting the motherboard. Liquid crystal is conductive and can corrode internal circuitry if the device remains powered.
b. Avoid Pressing the Screen
Do not apply pressure to the affected area. Pressing accelerates the spread of liquid crystal between the glass layers, expanding the fault range.
c. Professional Screen Replacement
iPhone display screen liquid leakage is irreversible. The only effective solution is to replace the LCD assembly. Never attempt to heat or "bake" the screen, as this causes permanent thermal damage to internal components.
d. Avoid Incorrect Operations
· The Freezer Method: Placing the phone in a freezer is ineffective and causes moisture condensation inside the device.
· Rice Immersion: Rice cannot extract moisture from sealed LCD layers and may introduce dust into the charging port.
2. Solutions for Battery Liquid Leakage
a. Immediate Shutdown
Turn off the phone to stop the current flow. Battery leakage can lead to ignition or explosion; keep the device away from flammable materials.
b. Avoid Contact
Battery electrolyte is corrosive. If skin contact occurs, rinse with plenty of water.
c. Professional Disposal
Do not puncture or disassemble the battery. Send the device to a repair center for battery replacement and hazardous waste disposal.

III. Summary and Prevention
iPhone liquid leakage, especially screen and battery failure, is usually an irreversible fault with high repair costs. To minimize the occurrence of these faults, users can take the following measures:
· Regularly Inspect the Phone Casing: Avoid screen breakage or external compression.
· Avoid High-Temperature Environments: High temperatures may cause liquid crystal instability or battery damage. Try not to expose the phone to direct sunlight for extended periods.
· Prevent Liquid Ingress: Keep the phone away from water sources. If the phone gets wet, power it off immediately and conduct a timely inspection.
· Use OEM or Quality-Certified Batteries: Inferior batteries are prone to leakage and swelling, so it is crucial to select batteries with reliable quality.
Although iPhone liquid leakage cannot be completely avoided, following DIYPHONE's guidelines can help reduce hardware losses.







