Hello, I have to reroute LG 32LD490-ZB BEKDLJP imported from England, but produced in Poland. It has only the I sound system and the UHF band. I tried to get into the service mode, but unfortunately it failed. Menu with remote control + keyboard menu held together for 10 seconds will not work. OK with the remote control + ok from the keyboard also does not work. Apparently a service pilot is needed, is this true?