minh hieu check la gi , nhung ma khong bit cach check nhu the nao . luc minh fake xong roi vao trang cashf thi co dong ghi la US only , nhu nhu la fake thanh cong ah` ????? (minh lam dung nhu loi bac mmo2120 huong dan , cong cu fake chuyen tu mau do sang mau xanh luon ) thanks cac bac