Topic: l and r buttons not working on dsi

i tried the air can and it didnt work. can someone help me please?

This happens to almost all DSi owners, even me. It's the way the buttons are designed (They are open) and dust gets in them. Just blow on the buttons and keep pressing them and they should start to work. it did for me.

I don't see how dust could get in if you use a case.

I use a case, trust me. It does get dusty.

Strange. I've had mine at summer camp for around four weeks and it never got dusty.