Have you locked yourself out of your car?? No problem, You need just a shoe lace and handy fingers! Pull your shoelace out of your shoe. In the middle of the lace, make a small noose knot that can get tighter as you pull on both ends. Hold your shoelace gently from both ends, and fit it over the closed door in the crack between the door and the car's frame. Pull the shoelace down however, only unlocked GSM phones can be easily switched from one carrier to another. I will address each seperately. Sim Card Sim Card Inserted. GSM Carriers (Cingular and T Mobile are the biggest two-and try to get the loop around the car's lock. One the loop is around the lock, pull on both ends to tighten the noose. Once the loop is secure, pull the shoelace up from both ends. The lock will be pull the lock up, allowing you access to your car.