Whether you're trying to open that mysterious closet or escape the police, or if you've just had the misfortune of being locked in a public toilet, don't worry - there is a way out! Keep calm and read on.
Steps
Part 1 of 2: Open a Locked Door without the Key
Step 1. Use a credit card on a snap lock
While this method won't work for security locks, you can still follow the directions for a spring lock (the ones with the wedge bolt and handle). Get a plastic card you don't need so it's no problem if it breaks. The best would be to use a slightly bent and very strong one.
- Push it between the lock and the door frame, flush with the latter; fold it back, forcing the latch back into the door and opening it.
- If there is not enough space you can insert the paper a little higher and then drop it quickly, folding it towards the frame; for this it would be better to use a thicker and more rigid card.
Step 2. Use a small screwdriver or other thin tool for interior doors
This method works for those that close by pressing a button. If you are stuck on the other side, look for a small hole in the knob and insert a screwdriver for glasses, a straightened paper clip or a very thin butter knife; push it in as far as possible, turning it until it grips the groove of the lock and opens it.
Step 3. Pick the lock
It could be complicated, so it would be best to read the full instructions. To start, insert the short side of a hex key into the bottom of the keyhole; force it slightly, turning in the opening direction; keep the force constant and use a straightened paper clip (with the curved end) to pick the lock.
- "Scrubbing": slowly insert the paper clip into the lower part of the keyhole, then rotate it backwards and upwards, repeating the procedure in a circular motion and slightly increasing the force on the Allen wrench with each step, until you feel the mechanism move. At this point, keep the pressure constant and continue with the circular movements, until the door opens.
- Cylinder by cylinder: If you are unable to open the lock with the previous method, apply a gentle but even force on the hex key as you slowly thread the paperclip. When you feel it touch a barrel, try to hook it with the bent tip and lift it until it locks into place; repeat with all cylinders to open the door.
Step 4. Remove the hinges
Use a flat-blade screwdriver, threading it between the bottom hinge and pin, then tap down on the screwdriver handle with a hammer. When the pin is loosened enough, remove it from the zipper.
Repeat for all hinges. If the pin does not come out easily, you may be more successful using a Phillips screwdriver
Step 5. Break the lock with a hammer
This is the last step because it should be your last resort. In most cases it would be best to call a locksmith or call the fire brigade using a number that is not reserved for emergencies. If you need to open the door urgently, though, tap it down repeatedly until the handle or lock comes off the door.
Part 2 of 2: Open a Locked Lock
Step 1. Push or pull the door while turning the key
Old doors often need to be held under pressure by turning the key, because if the door is warped the lock works at the wrong angle. Try to push in all directions: up, down, forward and backward; use as much force as you can, being careful not to fall once the door opens.
If you are using your friend's key, call him and ask him how to use it; chances are he knows how to make it work
Step 2. Turn the key in both directions
There is no international convention on the direction of rotation for opening locks. However, sometimes turning the key in the direction used to lock may unlock the mechanism. If you can turn the key slightly past the locked position, then turn it the other way in a quick, smooth motion and you will likely be able to unlock the lock.
Step 3. Lubricate the lock
If you are not going to replace it, use a dry lubricant such as graphite; the oil would block it more than before, once dry. A single, short sprinkle directly into the patch should be enough, and remember that too much lube could make the situation worse.
If you find yourself stuck inside a room, use whatever lube you have at your disposal, or rub the graphite of a pencil on the key
Step 4. Examine the keys
The source of the problem could be a bent key, or with worn or damaged teeth. If you have a vice available, you could temporarily solve the problem by straightening the key, but you will still need to go to a hardware store as soon as possible to replace it.
Step 5. Learn when to use force
If you hear a "click" while you are fumbling with the key, the door is probably open but the mechanism is blocked; a few blows could resolve the situation. In this case, hitting the door a few times could also help the lubricant distribute itself and release the jammed cylinders.
Step 6. Try other methods
You may need to drop the key and use the break-in methods described in the previous section; if these don't work either, you'll need to ask for the help of a blacksmith.
Advice
- If you manage to crack your front door, remember that even thieves will be able to. Use the safety lock if present, otherwise replace the current one with a more secure model.
- If you recognize the signs and sounds of the lock opening but the door standing still, there may be another lock (a safety latch or a lock on the handle) inside.
