Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tests
How to test edge gestures on a foldable device
Test edge touches on both screens of a foldable, then find out whether missed swipes come from the touch screen, Android gestures, or an app.
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Apps
How to record and edit an on-hold greeting
Record a clean phone greeting, trim pauses, add a gentle fade, and export WAV or MP3 in your browser, while checking your phone system's format needs.
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Tests
What a V30 card rating does not tell you
A V30 label guarantees a minimum sequential write rate for video, not every task. Learn what it says, what it leaves out, and how to test a card.
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Games
How to test shoulder buttons for intermittent input
Repeat button presses in your browser to catch missed or stuck shoulder inputs, then separate a controller fault from a game or connection problem.
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Tools
Time zones on the International Date Line
Learn why the date changes across the International Date Line, how UTC offsets create different local dates, and how to compare cities before scheduling.
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Apps
Why a portrait phone video looks cropped in 16:9
Learn why a portrait phone video loses part of the picture in a 16:9 project, how Fit and Fill change framing, and which export setting to choose.
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Tests
How to map Wi-Fi performance in a dorm
Map Wi-Fi quality across a student dorm, compare rooms and busy hours, and distinguish weak coverage from congestion with a browser-based test.
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Tests
Why your phone gets hot and charges slowly
Learn why a hot phone charges slowly, compare its charging rate safely, and check whether heat, your charger, cable, or a phone setting is the cause.
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Tests
How to verify a suspicious USB drive before returning it
Check a USB drive's real capacity, catch fake-size write and read-back failures, and keep clear evidence before you request a return.
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Tests
Battery percentage rises when unplugged: what to check
Check whether a rising battery reading is an estimate, a hidden power connection, or a battery fault, then compare it with your system indicator.
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Tests
Connection drops after router overheating: how to test
Test whether connection drops after a router overheats come from Wi-Fi, the router, or your provider, then check cooling and confirm the fix.
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Tools
How to clean a contact list before sending invitations
Clean duplicate contacts, fix obvious CSV errors, and review email addresses before sending invitations. Edit a copy in your browser.