Opening a door with a credit card works on a lockset because it s a lock that has a barrel that fits through the strike of the door jam.
How do you open a locked door with a credit card.
Then bend the card toward the doorknob.
As long as the lock is turned the door won t open.
Ever locked yourself out and have no way of getting in.
If it is slide a credit card you don t mind damaging between the lock and the door frame.
To open a locked door without a key first see if the lock is a spring lock.
Bend the card back towards the frame to force the lock into the door.
It does move a little though when a door knob is turned even if the door is locked.
Here is another life hack for you.
To open a door with a credit card start by sliding the card in the gap between the doorknob and the frame.
A spring lock is slanted and is part of the handle.