What should I do if I can t plug in the key of the anti theft door and can t open the door

You can ask the locksmith to come and help. If you can't remove the key from the door, you can drip a small amount of oil into the keyhole. Gently turn the key to fully lubricate the oil into the keyhole.

Shake the key repeatedly by hand and pull it out, if it doesn't work, you can use a wrench or pliers to pull the key out, preferably with oil on the key for reuse.

If the key has not been pulled out for a long time, causing the key to stick in the lock hole, you need to put oil in it and leave it for a day to allow the oil to fully lubricate the key and lock cylinder. After the key is removed, the rust on the upper part needs to be removed. Clear or replace the key.

If the key is stuck due to the displacement of the cylinder, you can shake the key up and down to loosen the locked cylinder. In this case, there is a danger of jamming when using it again, so you will need to remove it and replace it with a new lock cylinder and key.

.Generally speaking, the key can not be pulled out is not in a good position, some are caused by the dislocation of the lock core of the anti-theft door, when the lock cylinder appears outward after returning to the position, you can press it down with your hand, and the other hand can move the key to pull it out; A lock cylinder marble astringent two keys and marble stuck, at this time use universal lubrication rust remover spray into the lock hole, move the key, and then try to pull out; You can also pour pencil ink into the keyhole and move the key, and then try to pull it out; Find an anti-theft door repair and lock replacement master to help you open it. What should I do if the anti-theft door key can't be pulled out:

Using a leather conditioner, spray on the key, the key is easier to pull out, live pencil ink, lubricant. Mechanical gadgets will inevitably get stuck sometimes; Twist the head in the direction that can be screwed, and then quickly screw it back, press it hard inward, and it will come out after a circle; If we still can't pull it out, we can try to see if the direction is correct, if it still can't be pulled out. The help of a locksmith can be enlisted.

1. Check whether the anti-theft door key is correct, and whether the anti-theft door key and lock are damaged. 2. The anti-theft door key is not in the right position when inserted into it, and some of it is caused by the dislocation of the lock cylinder, you can press the keyhole with your hand, and then you can move the key with the other hand to try it. 3. The lock cylinder is astringent, the key and the bullet are stuck, at this time, use universal lubrication rust remover to spray into the lock hole, move the key, and then try to turn.

4. Find an anti-theft door repair and lock replacement master to help you open it.

It's been a long time, or it's been oiled, or there are burrs on the key.

Method 1; Remove the lock cylinder and clean it with gasoline or aviation oil. Remember not to remove the keyhole on the door and wash it down.

Method 2: Change the lock. Just look for a lock company.

Method 3: It will be better to plug and unplug a few more times.

Method 4: Scrape the key teeth with a steel file. There may be irregularities or burrs.

I don't know if it's feasible.