Many people with cell phones opt to buy a protective case to prevent damage. These cases come in two parts that snap together and hold your cell phone in between them. They snap together rather easily but provide a tight fit. Because of this, it can sometimes be hard to remove the case once it is snapped around your phone. There are several companies that sell plastic pry tools that are specifically designed to help remove cell phone cases. These tools won't cost anymore than a few dollars, and they can resemble anything from a guitar pick to a flat-head screwdriver.
Remove the belt clip attached to your cell phone case if one is installed. These clips will usually snap off of the case, but some of them may need to be twisted off.
Locate the seam running along the edge of your phone case where the two parts connect. The phone case has a front and back piece.
Slip your pry tool in the seam and gently pry the case apart. By simply twisting the pry tool, or sliding it around the edge of your case, the two parts of the case will fall apart.
If your phone has buttons or input slots running along its side, the case will also have openings around these areas to allow access. It is usually easiest to use one of these openings as an entry point for your pry tool.
You can use any type of wedge as a pry tool to remove your phone case. A credit card or guitar pick will usually work well. You can also try to use a flat-head screwdriver or a paper clip, but be careful not to scratch your phone. You can even use your fingernails if they're long and strong enough.