G500 laser cleanup

Hey, I just threw my g400 in trash due to inability to collect it back after disassembling, it was messed up anyways. So I took my g500 out after it's long time being abandoned and it feels unbelievably shaky and it's completely disobeying my requests. It didn't feel like that before so my guesses that it's either needed some updating stuff or the laser just clogged up. I'm sticking to the second option though since there is no logitech software anywhere that is responsible for laser work.

Anybody knows the way to cleanup my laser not disassebling the mouse, because I so don't want to unstick the gliders? Maybe there is another problem?

Might be an option :/