71. A customer is reporting that some of the keys at the bottom edge on a laptop are hard to press and the trackpad buttons require significant force to click. The technician inspects the laptop and finds no signs of cracks or other damage to the case or screen. Which of the following is the most likely cause of the issue?
Answer: C
The most likely cause of the issue is a swollen battery.
A swollen battery can exert pressure on the laptop's internal components, leading to keys being hard to press and trackpad buttons requiring more force to click. This condition often occurs without visible external damage, making it a plausible explanation for the customer's report.
A) The customer dropped the laptop.
While dropping a laptop can cause physical damage, the technician found no signs of cracks or other damage to the case or screen, which makes this option less likely. Furthermore, a drop would typically result in visible signs of impact, which are absent in this scenario.
B) The digitizer has failed.
A failed digitizer primarily affects touch input functionality and would not typically cause the keys to be hard to press or the trackpad buttons to require significant force. Since the issue is specifically related to the keyboard and trackpad, this option does not align with the symptoms described.
C) The battery is swollen.
A swollen battery is known to push against internal components of the laptop, which can lead to difficulties in pressing keys and buttons. This explanation is consistent with the observed symptoms, making it the most likely cause of the issue reported by the customer.
D) An open bottle of rubbing alcohol fell onto the keyboard.
While liquid damage can affect laptop functionality, there are no indicators that liquid exposure occurred in this case. Additionally, if rubbing alcohol had spilled, it would likely have caused more immediate and visible issues, rather than the gradual symptoms of hard-to-press keys.
Conclusion
The correct answer, C) a swollen battery, directly correlates with the issues described by the customer regarding the keyboard and trackpad. Other options either lack supporting evidence or do not align with the symptoms reported, reinforcing that a swollen battery is the most plausible cause in this scenario.