Open Mon–Sat · 10 AM – 8 PM
Free Diagnostic Tool

Laptop Hardware Test Tool

Check your keyboard, camera, microphone, speakers, screen pixels, and battery — all in one place, free, right in your browser. Pick a tab below, or click a part on the laptop to jump straight to that test.

Keyboard
Camera
Microphone
Speakers
Screen Pixels
Battery
Touchpad
Display Info
MGN Tech-Fix Diagnostic Diagnostic Mode
Camera Test
Speaker Test
Keyboard Test
Pixel Test
Battery Test
Full Keyboard
15" Laptop (with Numpad)
MacBook Keyboard
Camera Test
Microphone Test
Speaker L/R Test
Screen Pixel Test
Battery Test
Touchpad Test
Display Info
0 / 0 keys tested
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This tool needs a physical keyboard. On a laptop, just start typing on the built-in keyboard to test it.
Camera preview will appear here

Click "Start Camera Test" and allow camera access to check if your webcam is working.

Click "Start Mic Test" and speak normally — the bar should move as you talk.

Left
Right

Turn up your volume and test each speaker.

Pick a color, then click Full Screen. Look carefully for any dot or patch that doesn’t match — that’s a dead or stuck pixel.

White selected. Click "Full Screen" to begin.

In fullscreen: ← → cycle colours  ·  1–6 jump to colour  ·  click or Esc to exit

Live Data
Current Level
Charging Status
Time Remaining / To Full
Condition

Click below to read live battery data from your system.

Works in Chrome & Edge. Firefox and Safari restrict battery access for privacy reasons.

Move your finger on the touchpad / mouse here
Move
Left Click
Right Click
Scroll

Move, click, right-click and scroll inside the box above to test all touchpad functions.

Resolution
Available Size
Pixel Density
Color Depth
Orientation
HDR Support
Window Size
Dark Mode
Refresh Rate
Peak FPS

Click "Read Display Info" for instant specs, or "Measure Refresh Rate" for a 5-second precision test.

// Why This Matters

What These Tests Tell You

A quick way to confirm whether a problem is a hardware fault or just a settings issue — before you book a repair.

1

A key doesn't respond at all

The key is most likely damaged inside — either from regular wear or a liquid spill. Bring it in and we'll check which key needs fixing.

2

Camera shows a black screen or won't turn on

It could be a privacy setting blocking the camera, or the camera itself may be damaged. We'll figure out which one in minutes.

3

Mic picks up nothing, or your recording is very faint

The microphone may be blocked, broken, or muted in your sound settings. Either way, it's a quick thing for us to check.

4

Only one speaker plays, or sound is weak/rattling

The speaker is likely damaged — especially if the laptop was dropped or had a spill. Usually a straightforward replacement.

5

A dot or patch doesn't change colour in the pixel test

That spot on your screen is damaged — it's either permanently dark or stuck on one colour. The screen may need to be replaced.

6

Battery drains very fast or won't charge past a certain %

The battery is likely worn out and needs to be replaced. If it won't charge at all, the charging port may also need a look.

// FAQ

Common Questions

What can I test with this tool?

Your keyboard (every key, plus a 15-inch laptop layout and a MacBook layout), your webcam, your microphone with playback, and your left and right speakers.

A key, the camera, or a speaker doesn't respond — does that mean it's broken?

Usually yes, if you're sure you tried it properly. It could be wear and tear, damage from a drop, or a liquid spill affecting that part. Bring it in and we'll confirm the exact cause — no charge for diagnosis.

Does this tool work on mobile phones?

The keyboard test needs a physical keyboard, so it works best on a laptop. The camera, mic, and speaker tests will also work on a phone browser.

Is this tool free to use, and is my data safe?

Yes, completely free, no sign-up needed. Everything runs directly in your browser — nothing you type, record, or preview is stored or sent anywhere.

How does the screen pixel test work?

The test fills your entire screen with a single solid colour — white, black, red, green, blue, or yellow. Any pixel that displays the wrong colour (or stays black or stays lit) stands out immediately. Cycle through all six colours for a thorough check, because a stuck pixel may only be visible against certain backgrounds.

Why doesn't the battery test work in my browser?

This battery test only works in Chrome or Edge on Windows — it doesn't work in Firefox or Safari. If you see "not supported", just open this page in Chrome and try again. Your battery information never leaves your device.

Found a Problem in Any of These Tests?

Drop by our Taramani center or WhatsApp us — most keyboard, camera, mic, speaker, screen, and battery repairs are done same-day.

Book a Repair