If it's anything like the 100, there is a flash off button. The little red LED blinks and goes off after a few seconds. Same thing when you put it on. But the camera has some built in intelligence. Even if you tell it you don't want the flash, if it detects too little light, it will fire the flash anyways.
I wasted quite a few pictures trying to figure this one out and haven't yet found the threshold where the flash will or will not fire...
Also, notice that the focus setting is in portrait mode when the camera starts. You have to trigger it to distant mode manually (something I often forget)