Cleaning the "INSIDE" of the Front Panel Display of Oppo UDP-203 Player

Anyone done the Cleaning of the “INSIDE” of the Front Panel Display of Oppo UDP-203 Player?
i googled for any kind of videos or guides, but cant find any… the inside of my 203 front display panel is getting blurry… need to clean it.
anyone has done it before?


The pictures I took above seems like it’s super clear n not blurry… But with naked eye viewing, it needs cleaning on the inside…