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Mechanical Keyboard Not Working? 4 Fixes That Solve Most Cases
Keyboard not detected, keys not registering, or wireless not pairing? Four practical fixes for common mechanical keyboard problems.
Most keyboard problems come down to four causes: the cable, the wireless link, the switch seating, or the firmware layer. Work through these fixes in order before assuming the board is dead.
The keyboard is not detected over USB
Try a different USB port, preferably directly on the computer rather than a hub. Swap the cable: many bundled or decorative cables are charge-only and carry no data, so use a known data-capable USB-C cable. On Windows, check Device Manager for an unknown device; on Mac, check System Information under USB.
Wireless will not connect or keeps dropping
For 2.4 GHz, reseat the receiver in a front or top USB port and keep it away from metal obstructions. For Bluetooth, remove the keyboard from the host's paired-device list and re-pair from scratch. Make sure the board is switched to the correct mode, as many tri-mode keyboards have a physical toggle for wired, 2.4 GHz, and Bluetooth.
Some keys do not register
On a hot-swappable board, pull the affected switch and reseat it firmly; a partially seated switch is the most common cause. If the whole board types the wrong characters, check VIA or the vendor software for an accidental layer or macro. Test the board on another computer to rule out OS-level remapping software.
VIA does not detect the keyboard
Use the wired connection, as VIA cannot see most boards over Bluetooth or 2.4 GHz. Confirm the board actually supports VIA; QMK-only boards need different tooling. If the browser tool still fails, try the VIA desktop app and a different USB port, since some ports and hubs interfere with detection.
Questions, answered
My keyboard works wired but not wireless. Is it broken?
Probably not. Wireless-specific failures are usually pairing state, the mode switch, receiver placement, or low battery. Charge the board fully and re-pair before concluding anything about the hardware.
Can a firmware update fix key chatter?
Sometimes. Key chatter, where one press registers twice, can be debounce-related and improved by firmware. But it is often a worn switch, in which case replacing the single switch on a hot-swappable board is the real fix.