
Solving Otto's lock puzzle in Free Market Station is one of the first real brain ticklers you'll find in The Outer Worlds 2. After playing around with the switches and reading the note beside them, you'll likely conclude that it's basically impossible—you're lacking in vital information as to what the switches actually do.
All you know is that there's mysterious unclaimed loot behind the door you want to pilfer. The reason the Free Market Station lock puzzle is seemingly impossible is because that's actually kind of true. You need a special gadget in order to be able to interact with the puzzle properly at all: the N-Ray.