- A
A heat gun with a narrow nozzle.
Why wrong: A heat gun is used for reflowing BGA chips, not for desoldering a small port; it may overheat the board.
- B
A soldering iron with a fine tip.
A fine-tip soldering iron allows precise desoldering and soldering of the small pins on the charging port.
- C
A Phillips-head screwdriver.
Why wrong: A screwdriver is used for screws, not for soldered components.
- D
A plastic spudger.
Why wrong: A spudger is for prying and disconnecting cables, not for soldering.
Question 10 of 1,020
Soldered Charging Port Repair: Essential Tools
This 220-1201 practice question tests your understanding of mobile device hardware servicing. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A customer brings in a smartphone with a broken charging port. They want the port replaced. During disassembly, the technician finds that the charging port is soldered directly to the main board. Which tool is essential for this repair?
Quick Answer
The correct answer is a soldering iron with a fine tip. This tool is essential because a soldered charging port is physically attached to the main board with solder, meaning you must first desolder the old connections to remove the damaged port and then reflow solder to attach the new one. A fine tip provides the precision needed to heat individual pins without bridging adjacent connections or damaging delicate board traces. On the CompTIA A+ Core 1 220-1201 exam, this question tests your understanding of mobile device hardware repair and the distinction between soldered and modular components. A common trap is choosing a heat gun, but that would risk overheating nearby components like capacitors or the battery connector. Remember the memory tip: “Fine tip for fine pins” — if the port is soldered, you need controlled, pinpoint heat, not a broad blast.
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
✓
A soldering iron with a fine tip.
Option B is correct because the charging port is soldered directly to the main board, requiring a soldering iron with a fine tip to precisely heat and remove the existing solder joints and then re-solder the new port without damaging nearby components. A fine tip allows controlled heat application on small surface-mount pads, which is essential for this type of micro-soldering repair.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A heat gun with a narrow nozzle.
Why it's wrong here
A heat gun is used for reflowing BGA chips, not for desoldering a small port; it may overheat the board.
- ✓
A soldering iron with a fine tip.
Why this is correct
A fine-tip soldering iron allows precise desoldering and soldering of the small pins on the charging port.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A Phillips-head screwdriver.
Why it's wrong here
A screwdriver is used for screws, not for soldered components.
- ✗
A plastic spudger.
Why it's wrong here
A spudger is for prying and disconnecting cables, not for soldering.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse a heat gun (used for rework of large ICs) with the tool needed for a small soldered component, overlooking the need for precision soldering on a main board.
Detailed technical explanation
How to think about this question
In mobile device hardware servicing, charging ports are often surface-mounted using lead-free solder with a melting point around 217°C; a soldering iron with a fine tip (e.g., 1.6 mm chisel or conical) allows precise heat transfer to individual pads, preventing thermal stress on the PCB. A real-world scenario involves replacing a micro-USB or USB-C port on a smartphone where adjacent capacitors or resistors must not be dislodged, requiring steady hand control and proper flux application.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Mobile Device Hardware Servicing — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Mobile Device Hardware Servicing — This question tests Mobile Device Hardware Servicing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A soldering iron with a fine tip. — Option B is correct because the charging port is soldered directly to the main board, requiring a soldering iron with a fine tip to precisely heat and remove the existing solder joints and then re-solder the new port without damaging nearby components. A fine tip allows controlled heat application on small surface-mount pads, which is essential for this type of micro-soldering repair.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on 220-1201
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A user reports that their smartphone's charging port is loose and the cable falls out easily, making it difficult to charge. The technician inspects the port and sees no visible debris. What is the most likely cause and the appropriate repair?
medium- A.The charging cable is defective; replace the cable.
- ✓ B.The charging port has worn-out pins; replace the charging port assembly.
- C.Use compressed air to blow out the port.
- D.Apply a small amount of super glue to the port to tighten it.
Why B: The user reports a loose physical connection with no visible debris, which points to mechanical wear of the port's internal retention mechanism (e.g., the spring-loaded pins or the port's latch). Since the cable falls out easily, the most likely cause is worn-out pins inside the charging port assembly, and the appropriate repair is to replace the entire charging port assembly, as individual pins cannot be serviced separately.
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Last reviewed: Jul 4, 2026
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