To do this when door is open you will need to press the deadlatching pin which sits above the main latch next you will need to undo the cylinder retaining screw.
How to remove whitco security door lock without key.
Some locks designed for interior use may have these holes on the exterior side for homeowners who have lost the key.
Slip a straightened safety pin into small holes or use a flat screwdriver to press against a slot or depression.
Learn how to replace or change the security door lock under three minutes.
Firstly for a whitco mk ii tasman lock the lock needs to be in the locked position.
How to remove a door lock without a key by emily beach.
This is a video on how to remove the euro cylinder lock from a door.