Non-waterproof cases may not have a charge port door. If your phone doesn’t, you can skip this step.
Some phones may have two slots, one on each side on the bottom.
Continue to do this very gently until you hear a click. This click indicates the back and front portions of the case have separated. If your phone has two slots, repeat this step on the other slot. If you do not have the case key, you can use any coin to put in the slot.
You should hear another click when the other side of the latch opens.
At this point, your phone should easily pop out of the case. [7] X Research source