HELP, Stuck. Alpha Labs Sector 1, Hydrocon Controls

Ok right now im at the Alpha Labs Sector 1 in the Hydrocon Control Room. But I can't through this door that asks for a PDA. I've looked everyone for the PDA so I could get through but with no luck. But also there is a like hole in the ceiling over the door and I was wondering if maybe you somehow jump/climb up there and continue through the game that way. But I wasn't really able to jump that high. If it is that ceiling hole tell me how to get there. But Uh any help would be very appreciated...thanks ahead

OK as you enter that room, the locked door is on your right. Go left, theres a darkened section and just round the corner is a ladder. Go up that.

Yeah, I felt dumb after I noticed that. Thanks