Some people swear by.
How to unlock a bedroom door that requires a key.
Insert the tip of a small flat tip screwdriver straight into the machined hole in the face of the door handle.
To unlock the door simply insert the key or other tool into the pinhole in the doorknob and push it straight in until you contact the release button.
At this exact moment if the right amount of torque is applied you will be able to unlock a door without a key.
To bump a lock the bump key is inserted into the keyway and pressure is applied via a hammer or a screwdriver.
2 push lightly on the handle of the screwdriver as you rotate the tool in small.
The pressure exerted on the bump key causes the key pins to push the driver pins above the shear line.