- A
The digitizer is not compatible with the tablet model.
Why wrong: Incompatibility would typically cause no touch at all, but the technician likely ordered the correct part; a loose connection is more common.
- B
The digitizer flex cable is not fully seated in the connector.
A partially seated cable will prevent touch input while the display works. Reseating the cable usually fixes it.
- C
The LCD panel was damaged during the repair.
Why wrong: The LCD works, so it is not damaged; the digitizer is separate from the LCD.
- D
The tablet's touch controller needs to be calibrated.
Why wrong: Calibration is done after the digitizer is connected and working; no connection means no calibration possible.
Question 1,001 of 1,020
220-1201 Mobile Device Hardware Servicing Practice Question
This 220-1201 practice question tests your understanding of mobile device hardware servicing. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 technician is repairing a tablet that has a cracked digitizer. The LCD panel is intact and displays correctly. After replacing the digitizer, the touch input is unresponsive. What is the most likely oversight?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
✓
The digitizer flex cable is not fully seated in the connector.
The digitizer flex cable must be fully seated and locked into its connector on the tablet's mainboard to establish electrical continuity for touch signals. If the cable is loose or not properly inserted, the touch controller cannot communicate with the digitizer, resulting in a completely unresponsive touch input despite the LCD display functioning correctly.
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.
- ✗
The digitizer is not compatible with the tablet model.
Why it's wrong here
Incompatibility would typically cause no touch at all, but the technician likely ordered the correct part; a loose connection is more common.
- ✓
The digitizer flex cable is not fully seated in the connector.
Why this is correct
A partially seated cable will prevent touch input while the display works. Reseating the cable usually fixes it.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The LCD panel was damaged during the repair.
Why it's wrong here
The LCD works, so it is not damaged; the digitizer is separate from the LCD.
- ✗
The tablet's touch controller needs to be calibrated.
Why it's wrong here
Calibration is done after the digitizer is connected and working; no connection means no calibration possible.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The CompTIA A+ exam often tests the misconception that a cracked digitizer implies LCD damage or that software calibration can fix a hardware connection issue, leading candidates to overlook the simple mechanical step of ensuring the flex cable is fully seated.
Detailed technical explanation
How to think about this question
The digitizer uses a capacitive sensing grid that communicates with the touch controller via a dedicated flex cable using protocols like I²C or SPI. If the cable is not fully seated, the controller may not detect the digitizer at all, or it may report a 'no device' error during initialization; a common real-world scenario is a technician forgetting to lock the ZIF connector latch, causing the cable to work loose after reassembly.
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.
- →
Mobile Device Hardware Servicing — study guide chapter
Learn the concepts, then practise the questions
- →
Mobile Device Hardware Servicing practice questions
Targeted practice on this topic area only
- →
All 220-1201 questions
1,020 questions across all exam domains
- →
CompTIA A+ Core 1 220-1201 study guide
Full concept coverage aligned to exam objectives
- →
220-1201 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related 220-1201 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Mobile Device Hardware Servicing practice questions
Practise 220-1201 questions linked to Mobile Device Hardware Servicing.
Mobile Device Connection Methods practice questions
Practise 220-1201 questions linked to Mobile Device Connection Methods.
Mobile Device Accessories practice questions
Practise 220-1201 questions linked to Mobile Device Accessories.
Mobile Device Network Connectivity practice questions
Practise 220-1201 questions linked to Mobile Device Network Connectivity.
Mobile Device Application Support practice questions
Practise 220-1201 questions linked to Mobile Device Application Support.
Network Protocols practice questions
Practise 220-1201 questions linked to Network Protocols.
TCP & UDP Ports practice questions
Practise 220-1201 questions linked to TCP & UDP Ports.
Wireless Networking Technologies practice questions
Practise 220-1201 questions linked to Wireless Networking Technologies.
Network Services practice questions
Practise 220-1201 questions linked to Network Services.
Network Configuration Concepts practice questions
Practise 220-1201 questions linked to Network Configuration Concepts.
Common Networking Hardware practice questions
Practise 220-1201 questions linked to Common Networking Hardware.
IP Addressing practice questions
Practise 220-1201 questions linked to IP Addressing.
Practice this exam
Start a free 220-1201 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
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: The digitizer flex cable is not fully seated in the connector. — The digitizer flex cable must be fully seated and locked into its connector on the tablet's mainboard to establish electrical continuity for touch signals. If the cable is loose or not properly inserted, the touch controller cannot communicate with the digitizer, resulting in a completely unresponsive touch input despite the LCD display functioning correctly.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 →
Keep practising
More 220-1201 practice questions
- During a network cable installation, a technician needs to verify that a newly run Cat6 cable is properly terminated and…
- A user connects a 4K monitor to their laptop using a USB-C port. The monitor is detected, but the resolution is stuck at…
- A technician is troubleshooting a laptop that will not charge. The battery is removable, and the power adapter works on…
- A customer brings in a smartphone with a broken charging port. They want the port replaced. During disassembly, the tech…
- A user reports that their laptop's keyboard types random characters when certain keys are pressed. The laptop has not be…
- A technician is troubleshooting a laptop that shuts down randomly after a few minutes of use. The fan is spinning, and t…
Last reviewed: Jul 4, 2026
This 220-1201 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 220-1201 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.