Hello. my logitech G302 mouse had a left-click micro switch problem so i opened it and sprayed some dry contact cleaner (dry cleaner spray) into the micro switches (learned it from youtube).After that i assembled the mouse and plugged in ; now i have a bigger problem! I don't have curser now. it goes to the lower left corner, under the start ( windows ) button and i can't move it or even see it.when i click the mouse's left button, the start menu opens... .the LEDs of mouse blink and don't have the right lighting pattern of g302 .I removed logitech driver and the problem still there.I am 100% sure that i didn't damage anything inside the mouse. I'd appreciate any solution you could give me.PLEASE look at the videos of problem HERE .