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 map Wi-Fi coverage before moving furniture
Map Wi-Fi quality in each room before moving furniture, compare weak spots, and choose a better layout using repeatable readings instead of signal bars.
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Tests
Printer missing one color: what to check
Print a color test page to tell whether a missing color comes from a clogged nozzle, empty cartridge, grayscale setting, or the document itself.
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Tests
How to check a computer that was stored for years
Inspect a computer safely after years in storage, start it without risking damage, then test its battery, screen, keyboard, storage, and more.
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Tests
How to monitor dropouts during an online exam
Check for brief connection drops before or during an online exam, learn what the results mean, and choose safe fixes without disrupting your test.
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Tests
How to find the best place for a work-from-home desk
Compare desk locations with live Wi-Fi measurements, then choose a spot with fewer drops and steadier response time for calls and remote work.
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Tests
Laser toner problem or printhead issue? How to tell
Use a printed test page to separate toner and imaging faults from inkjet printhead clogs, then choose safe checks and the right repair.
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Tests
Why power-saving firmware limits processor speed
Find out how power-saving firmware can cap processor speed, compare scores safely, and check settings before changing BIOS or power options.
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Tests
Why motion permission varies on iOS
Learn why an iPhone may show a motion prompt in one browser but not another, how to check Safari settings, and what missing sensor data means.
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Tests
Why a VPN disconnects when idle
Find out whether your VPN idle drop comes from a tunnel timeout, device sleep, or a weak connection, then check the settings that keep it connected.
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Tests
MIDI controller connected but software sees nothing
Check whether your MIDI controller sends data, then trace why your music software cannot see it, from USB and browser access to app input settings.
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Tests
USB-C charger keeps renegotiating power? What to test
See how to test a USB-C charger and cable when charging speed changes, what a browser test can show, and how to tell normal power changes from a fault.
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Tests
Photo printer leaves tiny colored dots? What to test
Use a browser test page to separate printer defects from photo or paper problems, then check ink, print settings, and the path through the printer.