How to open the security door from the outside, where do I unscrew it

The security door, if it can be opened from the outside, what is the security door? If there is no handle, knock on the door if you want to enter, someone can only enter when you open the door, this is called the anti-theft door, if there is a handle, it is useless, the inside is locked, there is a key to open it directly, and if there is no key, it will be handled according to the following method.

The first step is to use the key in your hand to push hard twice on the outside, and if the key inside is horizontal, it can be pushed out. The problem is easily solved, and the jack can be twisted out.

The second step, if it doesn't work after a few strokes, don't hit it with a hammer or brick, you can hit it out like netizens said. Try the new security door yourself and can't get through. It can also break the lock.

The third step is to find an X-ray from the hospital. There is no way to find two unlocks, and they are all this way to open, to see if the lock on the crack of the door can be opened. This trick thin door can.

Fourth, because it is a thick door, the door has a groove in the seam. The previous step cannot be opened. At this step, you can only destroy the door, which is also the method of unlocking, in fact, the 50 yuan of unlocking can be saved.

If you pull the handle in the opposite direction or with the help of a tool such as pliers, the handle will fall off.

Fifth, don't worry after the handle falls off, in fact, what is broken is only the shell of the lock, and the intermediate structure such as the lock cylinder is not broken. Just buy a shell and go to the lock shop. 50 bucks to buy a good one.