Terms

The tests are provided as browser-based diagnostic aids, not as repair certification, calibration, warranty inspection, or professional hardware diagnosis.

Results can vary by browser, operating system, permissions, drivers, connected accessories, firmware, and browser API support. If a result matters, repeat the test in another supported environment.

A PASS means the browser observed the expected signal or event during the test. A warning or unsupported result does not by itself prove that the physical device is defective.

The service may change as browsers and web standards change. Use the tools at your own judgment and follow the hardware manufacturer or qualified technician for physical repair decisions.