I cannot get my screen to turn on while the camera is turned on. Do I need to replace the screen or can it be fixed...

First off, try to use a microfiber cloth and a lens cleaner to clean the lens. After doing this if the screen is still sticky and blurry there is a chance the lens has been affected by the substance internally. You'll want to refer to our Troubleshooting Page for replacement or more solutions.

First ensure that all the screws have been removed from the camera. In order to remove the back plate after the screws have been removed, you will need to apply significant amount of force using a spudger to pry them apart.