If faulty on arrival, the customer will get a comprehensive refund immediately and no return of your miner is needed. 자주 하는 질문 사기 주의 보증 확인 주문을 추적 펌웨어 다운로드 우리의 메일 링리스트에 가입하세요 The guarantee only relates to the initial purchaser who obtained the equipment directly from NiceAsicMiner. https://antminer-s19-xp-hyd-255th02578.creacionblog.com/33729103/antminer-s19-xp-hyd-255th-things-to-know-before-you-buy