[jogr]

With the door open tap the latch with a hammer to get it loose. If this is just a spring latch you can tap it pretty hard. If this is a poitive throw deadbolt you'll need to tap more gently while trying to turn the key at the same time. Your only using graphite lube right? Any kind of oil will accumulate dirt and end up counterproductive. If you've got old gunked up oil in there you'll need to clean it all out.