i'm having problems with this same upgrade,when i format the card in camera i then put into card reader when i open it there is only the DCIM folder there and if you put the cursor over it ,it says empty folder, i then copy
& paste the bin file into the window which then shows the file outside the DCIM folder,i then put card in camera go to setup menu select firmware it gives option to upgrade i then press ok ,a screen comes up saying update current 1.30 to new 1.31,i highlight yes,press ok,the next screen says updating don't switch off camera,the progress bar doesn't move at all and after about 40secs the screen dissappearers and goes back to the setup menu with no change to the firmware.I tried several cf cards with the same result.I have updated my other D4 cameras before with no problems like this.
I have only just bought the camera s/hand with 17k clicks on it but it's also showing another problem that when i connect the wt-5 to it go to the network menu and enable it no light comes on,if i put it on my D4 and enable it the green light comes on,i'm beginning to think this camera has an internal problem, any ideas out there .