This is an easy fix by realizing this problem and then unlocking your garage door.
Unlocking garage door track.
Locking and unlocking from the inside.
There are two bars running from the handle that release the door to be unlocked manually and there is also a button on it which moves the bars across to lock the door.
To unlock it push the release lever away from the track towards the center of the door.
You can also use the operating lever.
Keep turning it until you hear a click.
There will be holes in the vertical track that can be used with a simple padlock.
Garage doors get a lot of use which is one of the primary causes of the problem.
Use a key padlock on the vertical track to prevent the door from being opened manually.
To open it up all you need to do is thread a coat hanger or hooked piece of wire through the top of the door and open the emergency latch which can also be done by the rope many emergency latches.
If you install only the sk7115 you can lock and unlock your garage door from the inside.
To lock it push out the sliding bolt.
Lodged garage door track.
Your jammed garage door can be caused by something as simple as an obstruction in the track.
If the garage door vertical track is locked the door cannot be opened.
Garage doors like anything else with moving parts require periodic maintenance.
3 lock garage door vertical track.
Check to see if anything a shovel broom etc fell and is now stuck in the track that is causing it to be lodged.