Device troubleshooting guides
Dead keys, silent mics, unresponsive touch — each guide starts from the symptom, narrows it by operating system, then hands you a live browser check to confirm the hardware.
Sound, mic, and audio output
- Microphone not working — fix Windows, Mac, iPhone, and call apps Mic not working on Windows, Mac or iPhone? Sort out permissions, pick the right input device, fix Teams, Zoom and Meet, then check the level actually moves.
- Speaker not working — fix laptop, iPhone, and TV audio output No sound from laptop, iPhone or TV speakers? Fix the output device, mute and balance, separate earpiece from loudspeaker, then check left and right channels.
- Headphone jack not working — fix one-sided audio and silent earbuds Headphone jack silent or playing in one ear only? Clear lint from the port, reseat the plug, fix Windows and Mac output settings, then check both channels.
Camera and video
Keyboard, mouse, and touch
- Keyboard not working — how to fix laptop, wireless, and brand keyboards Laptop or wireless keyboard not working? Fix Windows, Mac, ChromeOS and iPad settings, rule out drivers and batteries, then check every key before replacing it.
- Mouse not working — fix wireless, laptop, Logitech, and Magic Mouse Wireless or laptop mouse not working? Fix batteries, pairing, touchpad toggles and Windows or Mac settings, then check every button before buying a new one.
- Touchscreen not working — fix dead zones, ghost touches, and unresponsive screens Touch screen not responding? Rule out protectors and moisture, fix Windows HID drivers, Chromebook and iPad settings, then map the surface for dead zones.
Power and battery
How to use these guides
Hardware problems and software settings look identical from the outside. A keyboard that types nothing might be a stuck Fn lock, a disabled filter key, a Bluetooth pairing glitch, or a failed membrane — and the same pattern shows up across microphones, mice, speakers, webcams, and touchscreens. Jumping straight to a repair shop wastes time when the OS privacy toggle or a driver conflict was the real cause.
So every guide follows the same triage: start with what you see, narrow it by operating system, check the quirks common to popular brands, then verify the result with one of our on-device tools. Nothing in those tools leaves your browser — no uploads, no accounts — so you can safely press every key or speak into the mic while you diagnose.