Look to the entrance of the building.
Please, find the green key lockbox.
Dial the code 1010 and push the black button to open it.
Keys for the entrance door and apartment door are inside. Once you have it, close and shuffle the numbers.
You have to use the chip by touching the surface here with it to unlock the door.
Take the stairs to the first floor.
1st floor on the right is your door. Enjoy your stay!