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220-1102 Practice Question: That their Android phone's Bluetooth keeps…
A user reports that their Android phone's Bluetooth keeps disconnecting from their car's hands-free system. The technician has already cleared the Bluetooth cache and re-paired the devices. What should the technician do NEXT?
⚠ Common exam trap
Test-takers frequently assume the phone is always at fault and jump to a factory reset (Option A) or hardware replacement (Option C), when in reality the car's infotainment firmware is a frequent source of Bluetooth instability that should be addressed first.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Update the car's infotainment system firmware.
After basic troubleshooting (cache clear and re-pair) fails, the next logical step is to check for firmware updates on the car's infotainment system. Bluetooth connectivity issues between a phone and a car are often caused by incompatibilities or bugs in the car's Bluetooth stack, which can be resolved by updating the car's firmware. The technician should prioritize updating the car's system before considering hardware replacement or more drastic phone resets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Perform a factory reset on the phone.
Why it's wrong here
Performing a factory reset on the phone is an overly drastic measure that will erase all user data, settings, and installed applications. While it can resolve general software glitches, it is highly unlikely to address a specific compatibility issue between the phone's Bluetooth stack and the car's infotainment system, especially if the phone connects successfully to other Bluetooth devices. This action should be reserved for persistent, widespread phone malfunctions, not targeted device-specific problems.
- ✓
Update the car's infotainment system firmware.
Why this is correct
Updating the car's infotainment system firmware is often the most effective and targeted solution for Bluetooth connectivity issues with specific phone models. Car manufacturers frequently release firmware revisions that include updated Bluetooth profiles, codecs, and drivers to improve compatibility with newer smartphone operating systems and hardware. This addresses potential discrepancies in Bluetooth protocol implementations between the car and the Android phone, which is a common cause of such problems.
- ✗
Replace the phone's Bluetooth antenna.
Why it's wrong here
Replacing the phone's Bluetooth antenna is an invasive hardware repair that is unwarranted in this scenario. Since the Android phone successfully connects to other Bluetooth devices, its internal Bluetooth module and antenna are functioning correctly, indicating that the issue is not a hardware failure. The problem is specific to the car's infotainment system, pointing towards a software or compatibility conflict rather than a physical component defect within the phone.
- ✗
Disable Bluetooth power saving mode on the phone.
Why it's wrong here
Disabling Bluetooth power saving mode on the phone is generally a troubleshooting step for intermittent disconnections or range issues, not a complete inability to connect or maintain a stable link with a single specific device. While power saving can sometimes interfere with consistent connections, the problem being isolated to only the car's system suggests a deeper compatibility or protocol mismatch rather than the phone aggressively managing its power consumption.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1202 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1202 exam.