If the doorknob just has a slit on the outside handle a butter knife should do the trick.
How to open a locked bedroom door with a hole.
With the twist lock turn the screwdriver.
This video show you one why how to get insid.
When the door unlocks on the other side you should hear the click.
Push hard the cylinder will retract allowing door to be pushed open.
Keyed locks are a bit trickier to open but it can be done.
Have you ever accidently locked yourself out of your bathroom or bedroom and didn t know how to get back inside.
For the round hole it is sometimes necessary to move the wire inside the hole until you hit the appropriate release trigger.
Pull the hanger toward you and as it pulls on the latch forcing it to retract the knob should turn and the door should open.
If the doorknob in question is a simple push button affair most of the time all you need to do is jab a paperclip in the hole and push on the locking mechanism.
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.
This won t work if the jamb blocks the gap between the door.
Insert the appropriate pick into the hole.
Doorknob with hole on one side of handle are simple trip toggle devices.