1, fill the key slot ( tinfoil unlocking).

Lock opening process: then put the tinfoil in a special tool, through the other the same tool to assist in inserting the B grade lock cylinder. The lock cylinder is then fixed in a small vise to simulate the unlocking process.

2, hit the lock cylinder.

Locking process: insert one end of the master key into the B-level lock cylinder, and then hit the other end of the key with a hammer. This way of unlocking is mainly the use of A, B-level lock core design loopholes, hit the core spring to achieve the purpose of unlocking.

3, insert the lock tongue.

Locking process: what you need is a made rectangular plastic card. Insert this card into the gap between the door and the door frame, and then slide down to the location of the lock tongue, and finally open the door smoothly. This way is more primitive means of unlocking the door, but more common, the crime is seen in the old residential area. This way of unlocking applies to the state of unlocked, for the anti-lock lock cylinder or inserted on the insurance pin, can not be successful.