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Tablet diagnostics

Test what the browser can see. Know when it cannot.

Use touch, display, camera, microphone, speaker and orientation checks before escalating to the tablet maker's native diagnostics.

Run these first

Relevant live checks

Touchscreen TestDraw on the screen to verify touch/pointer coverage.
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Dead Pixel TestShow solid colors full-screen so you can visually inspect for dead or stuck pixels.
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Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.
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Microphone TestCheck whether your browser can detect your microphone and receive live audio.
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Left Right Speaker TestPlay left and right channel tones separately.
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Device Orientation TestWatch browser-exposed orientation angles change as you rotate a supported phone, tablet, or laptop sensor device.
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First diagnostic sequence

Do the high-signal checks before risky changes

  1. 1

    Run the test closest to the symptom

  2. 2

    Compare portrait/landscape behavior

  3. 3

    Use OEM diagnostics when browser limits are reached

What DeviceOK/browser can help check
  • Test touch/media/display/sensor behavior exposed to the browser
What this browser page cannot prove
  • Inspect battery cells, charging controller or storage hardware directly