Samsung Galaxy Express 3 Rear Camera Lens Replacement

Starting from the indent, use a finger nail or guitar pick to separate the back from the body of the phone.

Once the cover is removed you'll find the battery that reads "SAMSUNG"

Use a fingernail or a plastic tool such as a guitar pick to lift up on the bottom indent of the battery.

Carefully push a small pointed tool such as a plastic opening tool (or metal spudger if needed) underneath the camera lens in a corner.

Pry up each corner of the lens.

Slide your tool underneath one corner to the other to release the lens.