Examine room 3F | Chapter 5: The Forsaken Thief Guide

The button in the guard booth

Go back east, towards the guard booth that you have visited recently. You should notice that starting the generator enabled you to press the button here and restore power supply in this part of the facility.

The hole

Do not worry if you cannot use the main passage to the East. Instead, enter the Southern room 3G (Sensory Deprivation Chamber), i.e. the one neighboring your current destination. Find a Magnifying Glass - 15G here and locate the hole through which to squeeze and enter room 3F Find two new notes (Transfer Request and Calibration). Finally, collect the Syringe - 10G from be big chair, which will start a longer vision.