Dungeon Prison Escape (Puzzle)

You were imprisoned for crimes you never commited. Enough is enough, you must escape! However, no one has ever reached the portal to the outside...

You were imprisoned for crimes you never commited. Enough is enough, you must escape! However, no one has ever reached the portal to the outside...
This is part 1 of 5. Head to my twitter @wertandrew for updated codes of all my levels.
Version 1.8: Security has changed...