Question Keys not working right on a Logitech G512, is it dirt or faulty hardware?

David_112

Distinguished
Oct 2, 2015
19
1
18,525
So, i have a bunch of keys that just don't work right on this keyboard anymore, essentially the entire top row from F1 to the Pause key, the entire numpad and the bottom row from ctrl to ctrl with the exception of the space bar which i was somehow able to fix permanently through sheer violence.

I tried cleaning the keyboard several times, last time literally drowning the switches in rubbing alcohol in frustration, and this works, but only for a few minutes and then the keys start acting up again. I then randomly blew on one of them (with the cap on mind you) to remove a spec of dust on the side while i was considering dissassembling the whole thing in my head, and wierdly enough that made the key work, but only for a few minutes.

I then tried to clean all of the keys again but nothing. It's the strangest thing all the evidence seems to suggest the problem is simply dirt under the switch that is preventing the key from making contact, and yet it's wierd how consistent the issue is. If i bang constantly on the key it eventually starts working but again only a few minutes. This time i poured isopropyl alcohol quite abudantly on one of the keys, not caring if i destroyed the thing at this point, and same result. Key works for a few minutes and then it starts messing up. And if i blow on them (with caps on and everything) same thing. Works for a few minutes and then nothing.

I checked a video on how to take the thing apart and it seems the PCB is not gonna be easy to remove from the metal plate:

View: https://www.youtube.com/watch?v=SqvzSd5FX1c


I guess i could just pour alcohol onto the PCB directly starting from the edges but man. Just what the hell is this.
 

Colif

Win 11 Master
Moderator
Are you using G Hub or Logitech Gaming Software?
some of the time it can be caused by software, others the keys on kb stick or don't register

G512 function keys not working
keys not working seems a feature of that keyboard as it ages

Could be the switches themselves. Happen to know if it uses Browns?

Have you tried the keyboard on another PC? Just checking its actually hardware and not the software causing it.

It would be strange to be the keycaps, expect its the keyboard itself. You might need a new one.
 
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