(2) Reaching the elevator Deus Ex: HR Guide
Last update: 11 May 2016
You should know that there's a security camera past the northern door (screen above) and it can see if you even before you enter reception. If you want to avoid being seen by the camera, then you'll have to observe its movements from the distance and use nearby walls for cover if necessary. If you've played aggressively so far you won't have to hide from the camera and you will be allowed to skip some of the actions described below.
Enter the new room carefully and then head north, stopping directly under the security camera #1. Turn left and jump over the desk to find yourself standing next to a security terminal #2. The good news is that this terminal is not protected by any firewalls and that you won't be seen by the camera if you'll decide to interact with it. The terminal contains several messages, but the first one is the most important, because it allows you to obtain a keycode to a nearby door - 6906.
You must now choose how you want to get past the reception. If you don't mind raising an alarm proceed to a nearby door #1, interact with an electronic lock and input a 6906 security code #2. If you want to avoid an alarm you could also choose this door, but you would have to wait for the camera to turn and then act quickly or rely on camouflage.
A much better way if you prefer a stealthy approach is to choose a door located directly under the camera #1. Look around to find an Ebook and then proceed to the next room. There's a weak wall here #2 and you can destroy it thanks to Punch Through Wall augmentation.
All methods described above will allow you to get to the elevator #1. Enter the elevator and interact with a control panel. If during a previous main quest named Hunting the Hacker you gave van Bruggen a weapon (he asked for it soon after the attack on the Alice Garden Pods hotel), then he'll contact you now #2 and reward you with 2000 credits. Wait for the elevator to take you to Zhao's penthouse.