TEST GUIDE
This low-frequency speaker aid may help move water away from the speaker grille, but it cannot confirm that a phone is dry or undamaged.
COMMON QUESTIONS
No. The test runs in a supported browser, although some device features require permission and may not be exposed by every browser.
No. It is a screening tool for browser-accessible behavior. Combine it with physical inspection, device settings and the ownership checks before buying.
No account is required. Results are kept locally in this browser unless you choose to print or save a report yourself.