1.To stop the spread of virus within the firmware, that may lead to damage to the ANTMINER S19 sequence, the placing purpose of “Secure Boot” has actually been switched on as well as the “Root Authority” functionality has been disabled. The caliber of support here is exceptional. My purchase was https://hectoroqiaq.liberty-blog.com/34707364/bitmain-antminer-s21-pro-fundamentals-explained