Why can t the original anti theft door key be screwed, it has to be shaken left and right a few time

If it is the original key, then you can blow a little pencil lead ash into it to estimate that the problem can be solved. It's about cutting the pencil lead into powder.

1 all should no longer be lubricated with a little wax or lead, if it really doesn't work, then change the lock cylinder, safety is the most important!

It is estimated that the hook on the door has fallen off, which is very troublesome, you use something to pad the cloth and knock it, shock and shake, and see if it can be recovered? If it doesn't work, find a member piece from the inside by the crack in the door, and try it by inserting it along the slope of the key. Of course, you first have to twist the key to the angle of unlocking. >>>More

Over time, the oil will stick the lead powder together.

Remedy: Drop some gasoline or water into the lock cylinder, dilute and dissolve the oil, wait for the gasoline to volatilize for about half an hour, blow some pencil lead powder into the lock cylinder, and then twist a few times to move freely. Try. >>>More

Go for a repair or kick it away It feels like it's working well, actually, hee-hee-hee.