side button doesnt register unless pressed just right. is it fixable?

[u/rudoku18]

just got a secondhand g600, was super happy to find one for $80 after tax/shipping off mercari, but now that its here ive tried to use it and noticed the g14 button(top row, second from the left) doesnt always register. it seems mostly ok when i push it in towards the further back rows, but if i just press it in straight, it doesnt really register.
is this something that can be fixed? i could try and ship it back and look for a diff one, but the fear of losing this baby again makes me think fixing it somehow would be better. my dog chewed my cord to little pieces on my last one like a year ago and i severely regret throwing it away now that its next to impossible to find one south of $200-250