Grab the pin with a pair of pliers to remove the pin from the shaft.
Change garage door lock barrel.
However the bad news for you since you say that you ve not got a key is that you generally need a key to be able to easily take the cylinder out.
Slide it under the door and catch the wires that actuate the lockingbolts.
You can also open the gap tween the frame and door with a pry bar near the bolts.
Find one with the most secure qualities.
Remove the pin that secures the inside lock handle to the lock shaft in the center of the door panel.
Replace a garage door lock or handle with help from a garage do.
Depending on the model you have you may need to pry it out with a crowbar and hammer or remove it with a drill.
Open it up make a hook at one end.
Step 1 obtain lock.
Compatible with your door.
Step 2 remove old lock.
Just like my door.
You can just see the wires in the above piccy.
Compatible with your door opener.
You can remove the lock measure it and replace it while you wait for the new one to arrive it only takes a matter of seconds with the key to remove the cylinder.
Place a nail over the pin and tap the nail with a hammer until you expose part of the pin.
Replacing the lock or handle on a garage door can be accomplished with the appropriate tools.