CompTIA Updated 220-1201 Exam Questions and Answers by lea

CompTIA A+ highlights that swollen or expanding batteries especially lithium-ion batteries can physically warp the laptop chassis, keyboard, or trackpad. This happens when internal chemical reactions cause the battery to swell. Distorted keyboards, bulging trackpads, and lifted chassis panels are classic symptoms of battery failure.

RAM and HDD issues do not cause physical deformation. A broken keyboard may malfunction electronically, but it will not bulge upward unless forced by something underneath typically an expanding battery.

The A+ safety domain also warns technicians not to puncture swollen batteries and to replace them immediately due to fire hazards.

Therefore, a failing (swollen) laptop battery is the most likely cause.

A. Check the product manual for the procedure:

When hardware is not easily accessible, always consult the product manual for proper disassembly procedures. Forcing the cover can damage the laptop or void the warranty.

Product manuals often provide step-by-step instructions for safely accessing internal components.

Incorrect Options:

B. Use a pry tool to force the cover open: Forcing the cover can cause physical damage to the device.

C. Insert the wireless card into the M.2 slot: This step cannot be performed until the cover is properly removed.

D. Try to move the cover by sliding it in all directions: Randomly sliding the cover can cause damage if the correct removal method is not followed.

Key Takeaway: Always refer to the product manual to ensure safe and proper disassembly of laptop components.

Abulging tablet casingis a classic sign of aswollen lithium-ion battery, often caused by age, overheating, or overcharging. This is adangerous condition, as swollen batteries can rupture or catch fire. It also explains why the tablet only works when plugged in the battery is no longer holding a charge.

Option A:Power supply issues wouldn’t cause physical bulging.

Option B:A bad charge port wouldn’t cause screen damage or physical distortion.

Option D:A broken screen could cause display issues, but not the bulging chassis.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 1.4: Given a scenario, configure settings and use cases for laptops and mobile devices.

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