OK to all italian users...
I solved the problem of TV imported from Eastern Europe with MHP services blocked.
Enter EZ-Adjust menu
Password is 0413
Area Code: was 3122, set to 3124 for Italy
Continent will automatically switch from 50 to 52
Exit EZ-Adjust menu
Reset TV to factory settings.
Now you will have MHP services activated!!!
Probably this procedure will work for all western europe, not sure about it. Definitely, it works for Italy.
If you don't know how to enter EZ-ADjust menu: http://delendanet.blogspot.it/2014/03/tv-lg-la420s-settare-i-servizi-smart.html
(I'm sorry but it is in Italian).