Fixing a broken mechanical keyboard PCB usually means re-soldering a loose hotswap socket or bridging a damaged trace with a small piece of wire. With a basic soldering iron, some flux, and a multimeter, you can fix the most common keyboard faults yourself. You don’t need to replace the whole keyboard. Most repairs take 15 to 30 minutes once you’ve found the fault.
ESD Safety First
Before you touch any PCB, set up your ESD (electrostatic discharge) precautions. A static jolt too small to feel can wreck the microcontroller or the key matrix diodes on a keyboard PCB. Two steps cover almost every build:






