Step 1: To the left of the Venus Fly Trap you'll see a severed wire. Click on the hole to reconnect the wire, which sends power to the electronic device.

Step 2: Click the switch on the black device above to turn it on and power the light.

Step 3: Click the orange button on the TV to turn it on. Adjust both the antenna and the knob with the pliers until you get an image with some numbers on it.

Step 4: Type that string of numbers using the keys on the typewriter to let the fly out of the cage.

Step 5: Click on the fly and it will fall into the mouth of the Venus Fly Trap.

Step 6: Click the Venus Fly Trap to solve the puzzle and unlock the door.