So I only looked at the logs on the Phantom once when I first got the thing. I forgot the procedure.
Well I connect my PC to the Phantom and watch as it says installing drivers. Then I try to browse the files, nothing, no drive letter, nothing.
The Phantom is now beeping and flashing red on the gimble light. I disconnect it all , shutdown, restart, start up RC.
I see the camera view, but only for 5 sec as the Phantom beeps and the gimble light flashes red. Crap did i brick my bird.
I had to flash it with old code, then new code to bring her back.  Not sure why or what happened. Just glad its back.
So be carful, make sure to enter Fligh data mode before connecting PC to Phantom.

Drones Made Easy / Maps Made Easy has a nice tutorial: http://support.dronesmadeeasy.com/hc/en-us/articles/206171443

They also have a DAT file reader to translate the files into something usable.