Digital channels don't work anymore

[elmaia]

Hi,

today I tried to change my TV Region because I live in Brazil and Netflix doesn't appear in App List.

Ok. I followed the steps but neither USA nor UK options appeared, only Brazil, Uruguay, Argentina, so on(South American Countries).
I tried some but when I came back to none, my HD Channels disappeared...

Now I just can watch analogical channels, not digital anymore.

I tried Factory Reset and EEPROM Reset, but nothing.

What can I do ?

Thanks a lot.