(5) Reaching the first elevator Deus Ex: HR Guide

Use the stairs to reach the upper floor #1. If you've been fighting guards in the cryo-room, then there's a chance you won't encounter anyone else here. Otherwise you'll notice that a single guard is patrolling nearby corridors #2.

The easiest solution is to shoot or stun the guard #1. It is not mandatory, because you may as well avoid him. This can be achieved by activating camouflage (Cloaking System augmentation required) or hiding in the room to your right (Pump Room A4) #2. Wait there for the guard to head left and then leave the room, quickly moving towards the elevator.

Assuming you've secured this area you should be able to take some time to look around. Visit Pump Room A3 and A4. One of these rooms has an electronic lock #1, but you can input a 7934 security code. Both rooms contain lockers with valuable things. Continue towards the elevator, locating a locked gate to your left #2. The electronic lock on the gate has a level two protection and solving the mini-game is rewarded with a chance to open even more lockers.

Proceed towards the northern door #1 and it shouldn't take long for you to find an elevator #2. Enter the elevator, interact with the control panel and wait until you're transported to a new level. Pritchard should contact you in the meantime, suggesting that you should locate a new elevator in Pangu which travels to the main tower.