Hardware Test Lab
ENESPT
USED / 35 min

Used laptop inspection

A conservative browser-assisted checklist for a second-hand laptop, with extra emphasis on display defects, input wear, battery evidence, ports, media devices, and cross-checking claims.

0 / 14saved locally
01

Device overview

Read browser-visible screen, processor, memory, language, connectivity, and platform signals in one place.

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02

Display geometry and scaling

Inspect viewport size, screen resolution, pixel ratio, orientation, color depth, and fullscreen behavior.

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03

Online dead and stuck pixel test for monitors

Cycle solid red, green, blue, white, black, and neutral backgrounds to inspect the panel edge to edge.

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04

Backlight bleed and uniformity

Use black and low-gray fields to inspect bright corners, edge leakage, clouding, and viewing-angle effects.

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05

Color gradients and banding

Inspect grayscale and RGB ramps for abrupt steps, clipping, tint, posterization, and dithering patterns.

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06

Online keyboard event and rollover test

Record keydown and keyup events, inspect codes, and see how many simultaneous keys the browser receives.

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07

Mouse buttons, wheel, and pointer

Verify pointer movement, primary and auxiliary buttons, wheel direction, double clicks, and browser-reported coordinates.

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08

Touch and multi-touch test

Draw with one or more contacts to inspect edge coverage, tracking continuity, contact count, and pointer cancellation.

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09

Online webcam image and permission test

Open a local camera preview, inspect reported track settings, switch devices, and confirm permission behavior.

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10

Online microphone level and permission test

Open a local microphone stream, view a live level meter, inspect track settings, and verify stop behavior.

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11

Headphone channel and jack test

Check left/right routing, jack detection, balance, intermittent contact, and obvious noise with controlled tones.

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12

Windows battery report parser

Parse a locally selected Windows battery-report HTML file for design capacity, full-charge capacity, cycle count, and a simple health ratio.

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13

Browser storage and persistence

Check localStorage, sessionStorage, IndexedDB, storage estimates, and persistent-storage permission for this browser profile.

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14

GPU and WebGL capability test

Create a local WebGL context, inspect limits and extensions, and run a brief animation workload.

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