Hey Baz. Had got that far. The trick was pressing back key 5 times from start menu. Then code was 87227 from memory (its on a couple you tube vids. From here I could change country code to MG50 (minigrid 50hz).

Will hopefully be picking up couple kWatt of solar panels and another 15kWatts of LifePo4 cells this weekend.. Going to heating this house with my old Antminer S9 this winter :)