Chosen Solution
My right click on my Logitech G9x started having the double click problem, so i bought a soldering iron and a few new mouse switches to put in. I started with the left mouse switch, it took a while but eventually I got it replaced and it works and feels fantastic. After that, I replaced the right mouse switch and cannot get it to work. I’ve unsoldered and resoldered it and another new switch in a few times and have had no success. I’m wondering if maybe I damaged the pcb, even though I never applied the iron for more than a couple seconds and didn’t use more than 200 C. I’m also wondering if it is the solder I’m using. The solder came with the iron and is some cheap chinese 63/37. I think for the first mouse switch some old solder may have remained behind and formed the connection with the pcb. All the old solder was removed for the right mouse switch. So i was thinking about getting different solder. Here are some pictures of the pcb: https://imgur.com/a/lESeblT
Or you might have connected two contacts of switch with solder. Can you take a photo of PCB with contacts soldered to it? Also, did you use flux? It’s not that important, but it might be an issue (since it’s used to peel oxydized layer on contacts)
You ruined the PCB, to get it work again you have to find where the pcb routes go and jump a new route with thin copper wire from another spot to the legs of the new switch. Those PCB’s on G9 series are so delicate and you can tear off the PCB while removing old switch (been there and made it work with jumper wire)
