Extended factory setup menu on BD ?

[oga83]

I am trying to enable the 'Visual Test' option in my BD-E8300 factory setup menu.

I guess I need first to enter the 'extended' factory setup menu.
On TVs, KEY_FACTORY then KEY_3SPEED displays the extended factory setup menu.
On my BD, I was not able to do that (KEY_FACTORY exits the menu).

Can someone with a TV confirm that, once you are in factory setup menu (KEY_INFOS then KEY_FACTORY), pressing KEY_FACTORY then KEY_3SPEED displays the extended menu (and activates new options, in particular allows modification of Visual Test option) ? if not, what is the exact procedure ?

Thanks in advance.

[oga83]

I think that I found a way to send encoded alpha commands (and not only hexa ) in debug console (for example 'KEY 60' to send KEY_3SPEED), but it needs 'Visual Test' to be enabled in setup menu...
Can anybody check whether this option can be enabled in advanced menu (I don't know how to enter the advance menu on my BD, yet ) ?

Thanks in advance.