Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tests
Tablet ignores touch near charging port: what to check
Find out whether a charging cable, case, screen protector, software setting, or damaged digitizer is causing a tablet's touch dead zone near its port.
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Tests
Wi-Fi latency when Bluetooth audio plays
Measure Wi-Fi response time, jitter, and drops before and during Bluetooth audio, then tell interference from normal network variation.
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Tools
How to create a QR code with a prewritten SMS
Create a QR code that opens a text message with the recipient and message already filled in, then test it before printing or sharing.
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Tools
How to handle a large screen recording on a low-memory PC
Record and manage long screen captures on a low-memory PC by shortening clips, reducing capture size, and avoiding memory-heavy editing steps.
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Tools
How to inspect Unicode arrows in a decorative font
Preview Unicode arrows in an installed decorative font, compare glyph shapes, and spot when your browser may be substituting another font.
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Tools
How to spot empty trailing columns in a CSV file
Open a CSV in the browser, find columns with no data at the far right, and decide whether to remove them without shifting or losing valid fields.
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Tests
How to check File System Access API support
Check whether your browser exposes the File System Access API, what each result means, and how to verify file picking on the site you use.
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Tools
How to capture an animated website interaction
Record an animated website while you click, scroll, or change settings. Choose the right capture area, include sound if needed, and avoid missed frames.
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Tools
How to clean JPEG metadata without recompressing
Remove location and camera details from a JPEG while keeping its compressed image data intact. Learn what to preserve and check before sharing.
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Tests
USB drive fast at first, then slows down
See why a USB drive can start fast and slow down during a transfer, how to measure sustained read and write speed, and what to check next.
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Tests
How to check sensor response after a system reset
Check motion, compass, light, location, and vibration after a system reset, then find out whether permissions or hardware are causing a failure.
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Tests
Why a router in a cabinet creates weak Wi-Fi areas
Learn why a router hidden in a cabinet can leave weak Wi-Fi areas, how to map the problem room by room, and which placement changes to try first.