Device troubleshooting guides
Start with the symptom you can observe, follow a short browser-safe sequence, then use the matching Device Check tool to verify what reaches the browser. These guides separate useful evidence from claims a web page cannot prove.
Microphone Not Working in Your Browser?
Fix a browser microphone that is silent, blocked, missing, or using the wrong input device.
Read guide →How to Allow Microphone Permission in Chrome
Check and restore Chrome microphone permission without weakening unrelated privacy settings.
Read guide →Webcam Not Working in Your Browser?
Troubleshoot a missing, blocked, black, frozen, or incorrect browser camera feed.
Read guide →How to Allow Camera Permission in Chrome
Restore Chrome camera permission and verify that the intended webcam opens.
Read guide →Browser Has No Sound?
Find why browser audio is silent when other apps may still play normally.
Read guide →Headphones Left and Right Test
Check stereo channel routing and identify swapped, missing, or uneven headphone channels.
Read guide →Keyboard Key Not Working?
Check whether a specific key reaches the browser and isolate layout, shortcut, or hardware causes.
Read guide →Keyboard Ghosting and Simultaneous Key Input
Understand missing key combinations and measure the rollover that your browser can observe.
Read guide →Mouse Buttons or Wheel Not Working?
Check browser mouse clicks, wheel events, movement, drag input, and common side buttons.
Read guide →Gamepad Not Detected by the Browser?
Help the browser expose a connected controller and distinguish support, focus, and connection issues.
Read guide →Stuck Pixel vs Dead Pixel
Understand the visual difference and inspect your screen with solid full-screen colors.
Read guide →How to use these guides
Check permissions, selected devices, connections, and competing applications before assuming hardware failure. Each guide links to an existing test and explains both what that test can confirm and its limits.