Once the new pins are in reverse the steps to reassemble the lock.
Front door lock diy.
The screws may be obscured by the door handle so you may need to turn the handle to reach the screws.
Full installation instructions come with.
Both doorknobs should come loose from the door when you remove the screws.
When rekeying multiple locks to fit a single key all locks must first have been made by the same manufacturer.
First remove the old door lock by unscrewing the doorknob on the inside of the door.
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.
These may be as little as 15 when purchased separately.
You can take it on trips to use in motels or use at home public bathrooms etc.
If you know your way around a basic screwdriver you should be able to tackle it in under an hour.
This is a video on how to make a portable door lock.
Replacing door locks is a relatively simple diy project.
Very easy to make.