The step-by-step order to diagnose PC, network and OS faults for the A+ without guessing and without swapping parts

Read the symptom, then check first, second and third. Each fault on its own drawn page, from POST errors to user permissions. 63 illustrated pages.

PDF study guide for CompTIA A+ 220-1201 & 220-1202 · 63 illustrated pages

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67PDF pages · 63 illustrated topics
9 partsPOST to security to exam week
2 booksbonus included
PDFby email, printable

This Is What the Pages You Will Study Look Like

Built to read on your phone screen while you study at your desk or review between help desk calls.

Step 3: confirmed goes to the plan; not confirmed means a new theory or escalation.
Step 3: confirmed goes to the plan; not confirmed means a new theory or escalation.
Wrong date on every boot: replace the CR2032 CMOS battery, then reset UEFI settings.
Wrong date on every boot: replace the CR2032 CMOS battery, then reset UEFI settings.
Cat 5e/6 to 100 m (328 ft), T568A vs. B, single-mode vs. multimode, RG-6.
Cat 5e/6 to 100 m (328 ft), T568A vs. B, single-mode vs. multimode, RG-6.
Mobile connectivity: airplane mode, data and Bluetooth toggles, cellular settings, tethering plan, then MDM restrictions.
Mobile connectivity: airplane mode, data and Bluetooth toggles, cellular settings, tethering plan, then MDM restrictions.
Event Viewer drawn and labeled: Level, Source, Event ID 1000, faulting module.
Event Viewer drawn and labeled: Level, Source, Event ID 1000, faulting module.
Change management in six steps, and why a fix without a rollback plan is the wrong answer.
Change management in six steps, and why a fix without a rollback plan is the wrong answer.
No POST, APIPA, smudges, BSOD, pop-ups: each linked to its first test and cause.
No POST, APIPA, smudges, BSOD, pop-ups: each linked to its first test and cause.

Swipe to see more · tap to zoom →

These are real pages from the book. The table of contents is the full one: 9 parts and 63 topics.

Case questions don't test what you know. They test what you check first.

You watched the videos. You made the flashcards. You memorized ports, protocols and acronyms. Then a case question gives you a symptom — and you freeze.

You know the facts. But when the question says "application crashes on startup," you don't know what to check first, what to check second, and when to stop.

Event Viewer drawn and labeled: Level, Source, Event ID 1000, faulting module.

This page shows you Event Viewer drawn and labeled: Level, Source, Event ID 1000 and the faulting module — each box in the same place every time.

No more digging through hundreds of log lines. Four boxes tell you what crashed and why.

That's what a method does. Same four boxes, same order, every fault.

Money lost on retakes

Each A+ exam attempt costs real money. Guessing on case questions means paying twice for the same test.

Hours wasted rewatching

You rewatch the same video for the third time, hoping it sticks. It doesn't, because the video gives facts without a diagnostic order.

Stress in front of others

At the help desk or in a practice lab, you hesitate. The senior tech sees it. The user sees it. You know the answer is somewhere — but you can't find it fast enough.

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SEE THE DIFFERENCE

The same topic studied two ways

THIS
  • Dense paragraphs with five acronyms in every sentence
  • Three highlighter colors, and the page still blurs together
  • A case question gives you a symptom — and you pick a step at random
When the system clock resets to its default value on every cold boot, the most probable cause is a depleted CR2032 coin-cell battery on the motherboard, which maintains CMOS/NVRAM data storing UEFI/BIOS parameters such as boot priority, date/time, and hardware configuration. To resolve: power down the system, follow ESD precautions, locate the battery holder, remove the old CR2032, insert a new one with correct polarity, enter UEFI/BIOS setup on restart, reconfigure all stored settings, and verify clock persistence across a full power cycle.
FOR THIS
  • One drawn page: symptom, test, result, cause
  • You see the answer in a picture you can recall
  • The method tells you the order — no guessing needed
Wrong date on every boot: replace the CR2032 CMOS battery, then reset UEFI settings.
CONTENTS

Take a Look at the 9 Parts and 63 Topics

Nine parts. From the six-step diagnostic method to exam-week review, covering every fault domain on the Core 1 and Core 2 objectives.

IThe Six-Step Method · pp. 5-10
  1. Symptom, Test, Result, Cause: How Every Page Works
  2. Step 1: Identify the Problem
  3. Step 2: Establish a Theory of Probable Cause
  4. Step 3: Test the Theory
  5. Steps 4 to 6: Plan, Verify, Document
  6. Reading a Case Question Like a Ticket
IIPower, POST and Display · pp. 11-19
  1. No Power at All
  2. Power Supply Rails and Connectors
  3. Fans Spin, No POST
  4. Beep Codes and POST Lights
  5. Clock Resets and Lost BIOS Settings
  6. Overheating and Random Shutdowns
  7. Powers On, No Display
  8. Dim, Flickering or Distorted Image
  9. Intermittent Crashes from Hardware
IIIStorage and Printers · pp. 20-27
  1. Drive Not Detected
  2. Clicking Noise and S.M.A.R.T. Warnings
  3. Slow Boot and 100% Disk Usage
  4. RAID 0, 1, 5 and 10 at a Glance
  5. "No Boot Device Found"
  6. The Laser Printer Imaging Process
  7. Laser Print Faults
  8. Stuck Print Queue and Other Printer Faults
IVNetworking · pp. 28-37
  1. Is It the PC or the Network?
  2. Reading ipconfig
  3. IP Works, Names Don't: DNS Faults
  4. Ports and Protocols on One Page
  5. IP Addressing You Must Recognize
  6. Cables and Connectors
  7. No Link Light
  8. Slow or Dropping Wi-Fi
  9. Setting Up a SOHO Router
  10. Network Tools and When to Use Them
VMobile, Virtualization and Cloud · pp. 38-42
  1. Laptop Parts You Replace
  2. Phone or Tablet Won't Charge or Sync
  3. Mobile Connectivity Faults
  4. Virtual Machine Won't Start
  5. Cloud Models in One Drawing
VIOperating Systems · pp. 43-51
  1. Windows Editions: What Home Can't Do
  2. The Windows Tools Map
  3. Slow Startup
  4. Boot Loops and Blue Screens
  5. Applications That Crash
  6. chkdsk, sfc and DISM
  7. Users and Permissions
  8. macOS Support Essentials
  9. Linux Commands for Support
VIISecurity · pp. 52-58
  1. The Seven-Step Malware Removal
  2. Malware Symptoms
  3. Social Engineering
  4. Account Security
  5. Securing a SOHO Wireless Network
  6. Lost or Stolen Device
  7. Data Destruction and Disposal
VIIIOperational Procedures · pp. 59-62
  1. Safety Before You Open the Case
  2. Backups and the 3-2-1 Rule
  3. Change Management
  4. Scripting Basics for Support
IXExam-Week Review · pp. 63-67
  1. The Most Common Troubleshooting Mistakes
  2. "What Should the Technician Do Next?"
  3. Symptom-to-Cause Master Map
  4. Exam Format and Your Checklist
  5. Your Last 24 Hours

Every cable on one drawn page, with its spec beside it.

Cables and connectors live together on one drawn page, each with its spec right next to the picture. No flipping back three chapters to find a table. No squinting at a list crammed into a paragraph.

Cat 5e/6 to 100 m (328 ft), T568A vs. B, single-mode vs. multimode, RG-6.

Cat 5e and Cat 6 to 328 feet. T568A versus T568B. Single-mode and multimode fiber. RG-6 coax. Each one drawn with its connector and its maximum distance.

Picture the connector, and the maximum distance comes with it.

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Here Is What You Get with IT Support: Symptom to Cause:

Ipp. 5-10

The Six-Step Method

The six-step troubleshooting method you use on every page, every fault and every case question.

IIpp. 11-19

Power, POST and Display

Power supply, POST failures, beep codes, display faults, overheating and random shutdowns.

IIIpp. 20-27

Storage and Printers

Drive detection, S.M.A.R.T. warnings, RAID levels, boot errors and printer imaging faults.

IVpp. 28-37

Networking

ipconfig, DNS, ports and protocols, cables, Wi-Fi, SOHO router setup and network tools.

Vpp. 38-42

Mobile, Virtualization and Cloud

Laptop replaceable parts, phone and tablet faults, virtual machines and cloud models.

VIpp. 43-51

Operating Systems

Windows tools, slow startup, boot loops, blue screens, chkdsk, sfc, DISM, permissions, macOS and Linux basics.

VIIpp. 52-58

Security

The seven-step malware removal, social engineering, account security and lost devices.

VIIIpp. 59-62

Operational Procedures

ESD safety, the 3-2-1 backup rule, change management and scripting basics.

IXpp. 63-67

Exam-Week Review

The most common troubleshooting mistakes, the Symptom-to-Cause Master Map and your exam-day checklist.

And That Is Not All: 2 More Books, Free

60 Practice Tickets, Solved Step by Step

BONUS 1: «60 Practice Tickets, Solved Step by Step»

Value on its own: US$ 17.90

Practice the method on realistic support tickets written from scratch, and see why each wrong first move wastes time.

Last-Week Review Cards: Ports, Commands & Common Mistakes

BONUS 2: «Last-Week Review Cards: Ports, Commands & Common Mistakes»

Value on its own: US$ 14.90

Review everything you need at a glance in the final days, and avoid the most common reasoning mistakes in troubleshooting.

IT Support: Symptom to Cause + 2 Free Books

  • IT Support: Symptom to Cause: 63 illustrated pagesUS$ 63
  • BONUS 1: 60 Practice Tickets, Solved Step by StepUS$ 17.90
  • BONUS 2: Last-Week Review Cards: Ports, Commands & Common MistakesUS$ 14.90
  • High-resolution PDF to printIncluded
Total value US$ 95.80
YOUR PRICE:
US$ 27
You save US$ 68.80
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PDF by email: IT Support: Symptom to Cause reaches your inbox as a PDF, and the two free books come by email too. One-time payment, no installments or hidden costs.

Is this for you?

Career changer studying for A+

Career changer studying for A+

You come from retail, a warehouse, admin or the military. You study at night after work and need a method that sticks — not more videos to rewatch.

The family 'computer person'

The family 'computer person'

You already fix everyone's laptop and router. You want the A+ to make it official, but the exam asks you to explain the why, not just the fix.

New help desk tech who needs to stop guessing

New help desk tech who needs to stop guessing

You got the job or the internship. Real tickets land on your screen and you need a diagnostic order you can follow in front of the user.

To Sum Up: Here Is What You Get

US$ 95.80US$ 27
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30DAYS
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30-Day Guarantee

30-day guarantee: tell us what didn't work and we'll refund 100%.

100% Money-Back Guarantee for 30 days. Use the book in your real study sessions. If it doesn't give you a clear diagnostic order, tell us what didn't work and we'll refund every cent.

Frequently Asked Questions

Is this a physical book or digital?

This is a 67-page digital PDF delivered by email: 63 illustrated topic pages, plus the cover and three contents pages. The printed page numbers include those four opening pages. Read it on your phone, tablet or computer, or print it.

Can I read it on my phone?

Yes. Every page is designed for a phone screen — one topic per page, drawn large and clear.

Does it work if I'm starting from zero?

Yes, if you can use a PC. Part I teaches the six-step method from scratch, and the network part starts from ipconfig, cables and IP addresses, drawn one topic per page. It won't replace a full networking course, but you can follow it without one.

How do I receive the material?

You get the book and the two bonus PDFs by email after payment.

Is this a one-time payment?

Yes. One payment, and the three PDFs are yours to keep and reprint as many times as you want.

Is this an official CompTIA product?

No. This is independent study material mapped to the public A+ Core 1 (220-1201) and Core 2 (220-1202) objectives. It is not affiliated with, endorsed by or sponsored by CompTIA.

Does this replace a training course or hands-on practice?

No. Keep your videos and your course for theory and labs. What this adds is the order: for each fault, what to check first, second and third, on one drawn page you can find again the night before the exam. It doesn't replace instructor-led training or lab experience.

Is it updated for the 220-1201 and 220-1202 exams?

Yes. Every page is mapped to the current published objectives for Core 1 and Core 2.

Are these real exam questions?

No. Every question, ticket and example in the book and the bonuses is original content written for this material. None come from the actual exam.

One Last Thing Before You Decide...

No more freezing when a ticket lands on your screen.

No more swapping parts and hoping. You check first, second, third — same method, every fault.

The method is always the same. The answer is always on one page.

You already solve problems every day. This book gives you the order to prove it.

One-time payment: US$ 27 · Guarantee: 30 days · PDF by email

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📄 This is a digital PDF book sent to your email: nothing is printed or shipped.