A technician is troubleshooting a smartphone that has a large dark area on the screen. The screen has no damage to indicate that it is cracked. Which of the following BEST describes why a blot is on t

The correct answer is D. Liquid damage. A large dark blotch or 'ink blot' appearance on a smartphone screen - especially without visible cracking - is a classic symptom of liquid damage. When liquid seeps behind or into the display panel (LCD or OLED), it disrupts the liquid crystal alignment or backlight layer, causin

Mobile devices

Question

A technician is troubleshooting a smartphone that has a large dark area on the screen. The screen has no damage to indicate that it is cracked. Which of the following BEST describes why a blot is on the screen?

Options

ADigitizer damage
BImproper charging
CAmbient light sensor damage
DLiquid damage

How the community answered

(30 responses)

A
17% (5)
B
3% (1)
C
10% (3)
D
70% (21)

Explanation

A large dark blotch or 'ink blot' appearance on a smartphone screen - especially without visible cracking - is a classic symptom of liquid damage. When liquid seeps behind or into the display panel (LCD or OLED), it disrupts the liquid crystal alignment or backlight layer, causing areas of the screen to go dark or discolored. The absence of cracking rules out typical physical impact damage. Digitizer damage (A) affects touch input responsiveness, not visual display output. Improper charging (B) does not cause localized dark patches on the screen. Ambient light sensor damage (C) would affect automatic brightness adjustment, not cause visible dark areas on the display.

Topics

#Smartphone troubleshooting#Screen issues#Liquid damage#Display problems

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