Check the back part to find the screws that are holding on the back cover.
How to change security door lock.
Then remove each side s door knob by pulling them away from the door.
Remove the screws from the old lock on the inside of the door.
You may also need to use a wire tool or a paper clip.
Turn over the lock so its keypad faces downward.
Buy a grade 2 or grade 1 door locks rekey the locks you ve bought to match your existing house key make sure your door does not need a lock extension kit remove the old lock replace the lock latch install the new lock body check for proper lock alignment.
Remove the two screws from the latch assembly on the side of the door.
Most electronic locks come with two screws that you need to remove from the inner part of the door.
If your new lock is the same brand and model as the old one you may be able to keep your existing latch plate and strike plate.
Remove the latch assembly doorknob.
The most comprehensive method of ensuring security it involves removing the existing lock from the door including the handle if it s a handle lock combo and then installing.
First remove the lock from your door following the manufacturer s directions.