How to open the door with a key?

The method of opening the cover plate of the keyhole of the card swiping lock is:

First, insert the fingernail or sheet into the gap at the bottom of the handle, then slightly open it, and then open the lock cylinder cover, so that you can see the keyhole.

the first type: the magnet disk shields the mechanical keyhole

the second type: the sliding cover shields the mechanical keyhole

Most mechanical keyhole models of smart locks are designed with sliding cover, so you can see the keyhole and charging hole by sliding the sliding cover under the handle slightly.

the third type: disk shielding keyhole

some new smart locks adopt disk shielding keyhole, which is different from the first type of disk and has no small hole for inserting wire. This kind of keyhole is easier to open, just press the disc with your finger on one side, and the other side will tilt up like a seesaw, exposing the keyhole behind the disc.

1 At present, the locks used at home are generally safety locks, and the safety factor is still very high. If you can't open them with a key, several methods can help you.

2 You can squeeze some engine oil into the keyhole, then turn it in the keyhole with the key, and the lock will open soon. If there is a foreign object in the door lock, the door lock will not open. You can find a thinner wire to take out the foreign object.

3 you can also drop a few drops of oil on the key, or you can use cooking oil without engine oil. Then you can insert the key into the lock hole several times, and then you can open the door with the key, which will be easy.

4 if there is no oil, you can use soapy water to make it urgent, smear some soapy water on the key, and then repeatedly insert the key into the lock hole to lubricate and open the lock. If the above methods still can't unlock, go to the unlocking company, and they will find a way.