Blog
Tests
Guides for testing your keyboard, mouse, screen, sound, network and other hardware, and for fixing what the tests find.
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Tests
How to check device tilt before using an AR app
Check whether your phone's motion sensors respond smoothly before opening an AR app, and fix browser or device settings that block tilt readings.
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Tests
What to test before recording a voice audition
Check your microphone, room noise, recording level, and playback before a voice audition, then catch app or permission problems before you submit.
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Tests
Mouse wheel clicks but scrolling is inconsistent
Test why your mouse wheel clicks but scrolling skips, jumps, or pauses. Separate a wheel problem from settings or an app issue, then try the right fix.
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Tests
How to test Wi-Fi performance without dBm
Check Wi-Fi response time, jitter, and drops in your browser, learn what the results can and cannot tell you, and choose a useful next step.
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Tests
Periodic internet timeouts: what your router may reveal
Learn how to spot repeating connection dropouts, test whether they follow a schedule, and narrow down the router, Wi-Fi, or ISP as the cause.
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Tests
How to check keyboard input without saving text
Check which keys a browser can detect without typing into a document. Learn what the results mean, what stays local, and how to troubleshoot missing keys.
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Tests
How to test a computer after a Windows update
Check your PC after a Windows update with a step-by-step hardware test, then use the results to spot settings, driver, or device problems.
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Tests
Why USB controllers affect sustained throughput
Learn how USB host controllers, hubs, and shared ports can slow long transfers, then compare a drive's read and write speeds and find the bottleneck.
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Tests
Why noise meter readings depend on microphone sensitivity
Learn why the same room can show different noise levels on different devices, how microphone sensitivity and gain affect readings, and how to compare them fairly.
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Tests
How to check printer alignment using fine lines
Print a fine-line test page to spot skew, gaps, and color shifts, then use the right printer maintenance steps to correct alignment.
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Tests
When pixel flashing may be unsafe for photosensitive users
Learn when the Stuck Pixel Fixer’s flashing may be unsafe, who should skip it, warning signs to watch for, and safer ways to inspect a pixel.
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Tests
How to photograph a screen pixel defect for warranty
Capture a clear, honest photo of a screen pixel defect for warranty support, with tips for lighting, focus, test colors, and useful evidence.