Someone unfortunately spilled a shot of a sugary drink onto the keyboard and a few of the keys have got sticky on the inside. I am able to remove the keys with no problem, but I want to be able to remove the hinges and cup to give it a thorough clean however the silicone dust protector is in the way. Has anyone had success on removing the hinges/ cup without the tearing this silicone film or have any advice on how to do this? Many thanks.