help please mu7000 access menu

[dadamin]

i'm upgrade my mu7000 firmware at last 1250.5 all is very well but i can't access to sevice menu
i do info + menu + mute + power
and mute + 182+power
i have a message indisponible
can someone solve this probleme please

[Kazar]

try this info+settings(in some remotes menu button) +mute and then power

[bubbah]

Power on. Mute,1,1,9,OK... on my UN40MU7000FXZA

That said, I cannot navigate that menu off of hotel node toggle