We are in contact with the buyer, there is no fuse in the Live so it's hard to figure out what is wrong really. Problem with second hand units is that the Chinese distributor will not take it in charge and we do not have distribution or a repair center in Hong Kong.
I guess a local qualified technician should do a basic checking and contact us for more info, but we will not be able to help someone without a basic knowledge of electronics.
It could be just a flat cable disconnected or something that moved during the shipping.