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 if your mouse's right button releases early
Check whether your mouse's right button sends a release while you are still holding it, then narrow down the cause and choose the next fix.
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Tests
How to test a microphone for online language lessons
Check whether your microphone captures clear speech before a lesson, then fix low volume, the wrong input, or browser permission problems.
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Tests
When to disable audio enhancements for accurate testing
Learn when to turn off noise suppression, echo cancellation, and auto volume, then compare your microphone's less-processed signal with call-ready audio.
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Tests
Why headphone audio sounds hollow with spatial sound on
Find out whether spatial audio, an app effect, or a headphone setting is making sound hollow, then compare channels and switch off the right effect.
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Tests
How to check for a weak tweeter with a test tone
Use a browser speaker test and a low-volume tone sweep to compare treble output, spot a weak tweeter, and separate speaker faults from settings.
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Tests
How to detect a failing Enter key on a laptop
Test whether your laptop's Enter key is missing presses, repeating, or sticking, then narrow the cause to settings, software, or hardware.
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Tests
How to check sensor behavior on a school tablet
Test a school tablet's motion, compass, light, location, and vibration sensors in a browser, and find out what permissions or school settings can block them.
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Tests
How to prepare motion sensors for a museum demo
Prepare a reliable browser-based motion sensor demo by checking permissions, device orientation, and movement before visitors arrive.
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Tests
How to check a phone after a screen replacement
Check touch, display, sensors, brightness, and call functions after a phone screen repair, and learn which problems need a repair shop.
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Tests
Navigation arrows spin in place: what to test
Find out whether a spinning navigation arrow comes from the compass, location, phone case, or app, then test the sensors and try practical fixes.
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Tests
Camera image has color blocks: what to test
Find out whether colored blocks come from low light, a video app, a USB connection, or the camera itself, then check the right fix.
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Tests
Webcam flickers under LED office lighting: how to fix it
Find out why LED lights create webcam flicker, test whether the lighting or camera is responsible, and try practical fixes for smoother video.