To return to Charlie’s obnoxious machine to unlock the door and search the hideaway in Afternoon Delight in Fristad Rock in Deathloop, press the cassette based on the order of the pictograms using the key on the right side of the machine. For me the order was cassette 07, 35, 11 and then 08.
To Search Fia’s Fortress for Original Pictograms in Afternoon Delight in Fristad Rock at Noon in Deathloop, grab a battery in the room below the sensor in the entrance area and charge it at the charging station. Take it out of the room and to the locked area and insert the battery into the slot to open the door. The first pictogram is at the back of the area on the wall.
The second pictogram is inside of a room near the entrance below the sensor, the same room where you picked up the battery.
The third pictogram is on the bottom of the vehicle in the entrance area.
The final pictogram is at the end of the corridor in the entrance area to the left of the door leading deeper into Fia’s Fortress.
To unlock the safe in The Yerhva in Karl’s Bay in Deathloop, go through the Space Invader lead until you find the code for the safe. Then go to Karl’s Bay in the evening and open the safe in The Yerhva. For me the code was 1765.
To search the Fristad Shore in Fristad in Deathloop go behind the big array near the entrance to Fristad and hug the mountain to the right. Go through the military base down to the shore and follow the shoreline until you find a cove. This is where the picture with Charlie and Fia was taken.