I've just receceived my BD-E8300, and the first thing I did was opening it

I tried to locate the debug console signals as I did with my BD-D8900.
It seems that Samsung worked to hide them a little more :
I spent a few hours trying to find the signals with my oscilloscope... without any success

The signals MUST be somewhere and I came to the point that the debug console might be disabled by default in the setup menu (which is surprising for a debug console that must be the first thing to work).
Unfortunately, I was not able to enter the setup menu. The KEY_FACTORY network method doesn't work anymore...
Firmware is up to date (1006).
Has anybody entered the E-series setup menu ?
Thanks