If the R button snaps off the joycon motherboard you can run jumper wires to the 2 places shown in the photo below if there are no pads left under the R button switch.
Anyone know the part number for that surface mount button? Is it available on Digikey, Mouser, etc?
aliexpress have them. I can’t post a link but search for joycon micro switch should bring up the results.
they cost £2.31 for 2
Yea, I’ve seen a few around specifically sold as a joy con part. I was hoping it was a generic part that an electronics supplier would stock. Switches like that typically cost way less than a dollar.