A user's phone does not respond to touch. A technician inspects the phone but does not see any evidence of physical damage. The technician restarts the device, which does not fix the issue. Which of t

The correct answer is D. Digitizer. The digitizer is the transparent layer bonded to (or beneath) the display glass that detects touch input and translates it into screen coordinates. It is a separate component from the LCD/OLED display panel itself. When a phone fails to respond to touch but the screen still displ

Mobile devices

Question

A user's phone does not respond to touch. A technician inspects the phone but does not see any evidence of physical damage. The technician restarts the device, which does not fix the issue. Which of the following components should the technician examine next?

Options

ABattery
BScreen
CStylus
DDigitizer

How the community answered

(40 responses)

A
3% (1)
B
15% (6)
C
8% (3)
D
75% (30)

Explanation

The digitizer is the transparent layer bonded to (or beneath) the display glass that detects touch input and translates it into screen coordinates. It is a separate component from the LCD/OLED display panel itself. When a phone fails to respond to touch but the screen still displays content normally, and there is no visible physical damage, the digitizer is the most likely failed component. The battery (A) affects power, not touch. The screen/display (B) would show visual issues, not touch failure. A stylus (C) is an external accessory and not a phone component. The digitizer is the hardware directly responsible for capacitive touch detection.

Topics

#Mobile device troubleshooting#Touchscreen issues#Digitizer#Smartphone components

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