Are you trying to or looking for firmware update instructions for this model?
If you are looking for the official technical documentation for this specific hardware, you can find maintenance manuals and test file guides on the Zeus Mining or the Bitmain Support websites. AsiaBjBBS3E13Mini
Файл теста платы хэширования Antminer S19j pro - Зевс Майнинг Are you trying to or looking for firmware