In most cases you can use your fingers in the hole left by the lock to remove the lock s latch through the side of the door.
How to change lock in a door.
Insert a flatheaded screwdriver into the spindle housing hole.
In apartment complexes this is now the most common way of changing locks on a door.
Insert another flathead screwdriver under the edges of the tabs holding the lock cylinder in place within the housing.
Remove the two screws from the latch assembly on the side of the door.
Insert the exterior part of the lock into the door by feeding the long metal piece through the opening in the center of the bolt.
Then remove each side s door knob by pulling them away from the door.
Use a phillips head screwdriver to unfasten the two or three screws located on the inside knob plate.
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.
Rekeying involves realigning the pins and springs in the inner workings of the lock in.
On the opposite side insert the bar into the channel in the back of the turn assembly plate.
How to change a upvc door lock.
You may also need to use a wire tool or a paper clip.
Remove the latch assembly doorknob.
Insert the bar protruding from the new deadbolt lock through the channel in the deadbolt itself.
Position the lock mechanism such that the keyhole is vertically aligned.
Insert the new bolt into the opening on the edge of the door and fasten it to the door with the provided screws.
Remove the strike plate on the door jamb as well.
Insert the pins and reassemble the lock dump out the old pins insert the new key and use tweezers or small needle nose pliers to match the new colored pins to the color code on the special instruction sheet.
Once the new pins are in reverse the steps to reassemble the lock.
But sometimes this may not be possible.