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Phone diagnostics

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

Run browser-safe camera, microphone, speaker, touch, display and motion checks, then use the phone maker's native diagnostics for charging, battery, cellular, NFC, biometrics and other protected hardware.

Run these first

Relevant live checks

Touchscreen TestDraw on the screen to verify touch/pointer coverage.
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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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Dead Pixel TestShow solid colors full-screen so you can visually inspect for dead or stuck pixels.
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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

    Choose the symptom rather than running random resets

  2. 2

    Use DeviceOK for browser-visible components

  3. 3

    Use OEM diagnostics for protected hardware

What DeviceOK/browser can help check
  • Test browser-visible media/touch/display/sensors
  • Check permissions
What this browser page cannot prove
  • Read battery health/cell cycles universally
  • Test cellular/NFC/biometrics fully
  • Access protected OEM diagnostics