Please return the item to us and send it to Sony Hong Kong to have a fully check with the returned product. Sony Hong Kong will provide an official result to us after checking the item.
As a kindly reminder, when we receive the product and after produce test by Sony Hong Kong, if it is defective, we will provide a refund or exchange for you and we will also pay the shipping fee.
However, if it is fully functionable, we will send back the original produce to you and you have to pay the shipping fee in both side from Korea to Hong Kong and Hong Kong to Korea as well.
Please let us know if you agree with this and we will then start the returning process.