No mention of the Digital Crown removal? I fear my autistic sons pair has failed due to wet finger on the crown.

My autistic son, 13, he needs high quality headphones and these have been great, but he’s a heavy user, 13 hours every day…! Anyway, these have had moisture issues at the ends of the head bands which I have cleaned up and greased with electrical grease to avoid further issues, but it’s come to light that he has not been drying his hands after using the toilet and has been using then crown button…. Now there’s all sorts of problems. I need ideas to resolve this issue please? Is it possible to replace or repair the crown bttn? Or maybe WD40? If I open it up I could spray some conformal coating on the pcb to protect it.

The port for charging has failed on mine. Gonna fit a 3.5mm jack in the micro usbs place.