If defective on arrival, the buyer will get a complete refund straight away and no return of your miner is necessary.?? ??? ??????? ????? ??? ? ?????????? ?????? ????? ???? ??????? ?????? ??????? ?? ????? ?? ????? ?????? ???? ????? ???? ??? ???.???? ??? ??? ?????. ??? ?? ?? ?? ?? ?? ????. ???? ??? ??? ??? ???? ?? ?? ??? ??? ??????.??? ?????? ???? ?