Exam 220-1201 Topic 1 Question 100 Discussion

Actual exam question for CompTIA's 220-1201 exam
Question #: 100
Topic #: 1
A technician receives a tablet that looks like it has a bulge inside. The bulge is pushing the screen away from the backplate. The tablet still turns on when it is plugged in, but the screen looks damaged and turns off when unplugged. Which of the following is the most likely cause of this issue?

Suggested Answer: C Vote an answer

The most likely cause is a swollen battery, which occurs when the battery's internal components break down, causing a buildup of gas. This results in:
Physical Symptoms: The battery bulges, pushing the screen away.
Operational Symptoms: The device may still power on when connected to a charger but fails to hold a charge due to battery degradation.
Option A (Malfunctioning power supply): Incorrect. Power supply issues affect charging but do not cause physical bulging.
Option B (Damaged charge port): Incorrect. A damaged port can prevent charging but does not explain the bulge.
Option D (Broken screen): Incorrect. A damaged screen does not cause the device to bulge; it is likely a secondary effect of the swollen battery.
Safety Note: A swollen battery poses a risk of fire or explosion and should be replaced immediately following proper disposal procedures.
References:
CompTIA A+ Core 1 Objectives: 5.5 (Troubleshooting common issues with mobile devices)

by Egbert at Oct 16, 2025, 06:31 AM

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