RK M75 keyboard “.” key not working – switch changed, RGB works but blue LED not lighting (Mumbai repair?)

Hi everyone,

I’m having an issue with my Royal Kludge RK M75 mechanical keyboard where the “.” (dot) key is not registering input.

Here’s what I’ve already checked:

• Removed and cleaned the keycap
• Replaced the switch with another one (keyboard is hot-swappable)
• Tested with multiple switches
• RGB lighting works, but the basic blue LED on that key doesn’t light up

So it seems like the switch itself isn’t the problem. I’m starting to suspect it could be a PCB trace or socket issue.

Does anyone know a good place in Mumbai that repairs mechanical keyboards or does PCB/switch socket repairs?

If anyone has experience repairing Royal Kludge keyboards or has faced a similar issue, I’d really appreciate any advice.

Thanks!