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Device Diagnostic Tools — Find Out What's Wrong With Your Device

Use these diagnostic tools when something feels wrong but you do not want to guess. They help you narrow down common faults like overheating, charging problems, screen damage and sudden slowdowns.

How this tool helpsAnswer up to five targeted questions to identify the likely fault area, safety priority and most useful specialist check. This is guidance, not a final diagnosis.

Start with the symptom you can see, then follow the linked service or guide if the result suggests repair. That saves time and helps avoid unsafe or unnecessary testing.

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Unified device diagnosis

Start once, then follow the right repair path

Answer five short questions. The final question changes to match the symptom, so you get a useful result without completing several overlapping tools.

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Device Diagnostic Tools — Find Out What's Wrong With Your Device — Your IT and Tech Mates
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About These Tools

What are device diagnostic tools? These free tools help you identify the fault type on your laptop, desktop, phone, or tablet before calling for repairs. Most computer faults — slowness, overheating, screen damage, charging problems — can be narrowed down significantly by answering a few targeted questions.

What to do after running a tool: If the result suggests a serious fault (drive failure, GPU issue, severe water damage), act quickly — delays often increase repair cost or risk data loss. For minor faults, our guides walk through DIY options first.

7 diagnostic tools

Tools in This Category

🔍 Diagnose
Slow Computer Diagnosis
Find out why your PC is running slow
🌡️ Heat
Laptop Overheating Check
Is your laptop running too hot?
🖥️ Display
Screen vs GPU Check
Screen fault or graphics card?
⚡ Charging
Charging Port Check
Port, cable, or battery issue?
💧 Urgent
Water Damage First Response
What to do in the first hour
📏 Screen
Screen Damage Check
How severe is your cracked screen?
✅ Same-Day
priority repair assessment may be available Check
Can your device be fixed today?
About These Tools

Who These Tools Are For & How to Use Them

Who should use these tools?

These tools are for anyone whose device is behaving unexpectedly — shutting off, running slowly, displaying screen problems, or showing signs of charging or overheating issues. Use them before calling a technician to understand what you're dealing with.

🧭 How to choose the right tool

Start with the symptom closest to your problem: Slow → Slow Computer Diagnosis. Overheating → Laptop Overheating Check. Screen issues → Screen vs GPU Check. Not charging → Charging Port Check. After getting wet → Water Damage First Response.

⚠️ When to stop using tools and call a technician

If your tool result shows hardware failure, physical damage, or a fault that's worsening — book a professional assessment. Delays on cooling issues, charging faults, or water damage significantly increase repair cost and data loss risk.

Common Questions

Frequently Asked Questions About These Tools

Not necessarily — minor results include DIY steps you can try first. But if those steps don't resolve the problem within a day, escalate. Many 'minor' issues are early warning signs of hardware failure.
Answer every question as accurately as possible. If you're unsure about a question, choose the closest option. If results still don't match, call us — phone review is free.
Yes — all tools cover both Windows and Mac hardware unless specifically noted. MacBook-specific nuances (e.g. T2 chip, APFS, Apple Silicon) are referenced in the relevant result explanations.
If your device is shutting off unexpectedly — use the Overheating Check first, then the Slow Computer Diagnosis. Thermal shutdown is often the root cause of multiple other apparent symptoms.
Depends on the fault. Overheating devices risk permanent CPU/GPU damage. Failing drives risk data loss. Devices with electrical faults risk component damage. When in doubt, power off and call us.
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Need help after using a tool?

Send the result through QuoteMe or describe the problem in your own words. A technician can confirm the safest next step and price before paid work begins.

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