Make your way back to Adam's Apartment in this district. It is only a short trip from the metro station there
Inside the apartment, head over to the table in front of the TV. The Memory Disk Reader will be highlighted to be sitting there. Interact with that spot to place the reader and then insert the memory card.
This begins a conversation with the digital entity that calls itself Helle. Talking with it will reveal a lot about its creation and who it has splintered off from following the events of Human Revolution. You can help her decide some aspects that she will take on. By opting for the Doubt option, you can press the AI with more questions to learn more about it.
When this conversation comes to an end though, it is time for some fighting.