mode button not working what to do?

mode button not working what to do? how can i fix it?

Try some contact spray for a quick fix. Failing that, solder in a new tact switch. SOOOO easy to do & incredibly cheap.
If your not confident with soldering get a mate to do it

Yeah, if contact spray doesn't work, it probably needs a new tact switch. I had absolutely no soldering experience & replaced 2 tact switches no problem. Of course be careful & if not comfortable with it see if you can get help. I bought a bunch of tact switches so I have some on stand-by, I have a few others that are about ready to go. Good luck!

i see mpcstuff.com is offering services is it worth going through them? and what kind of contact spray do i need? air in can?