Having said that, in the situation of Antminer Z15 such function was not completed by groups that specialize in tailor made miner firmware. As a result, it is healthier to leave the async about the inventory firmware. That will help assistance the investigation, you could pull the corresponding error log https://flagma.ua/en/bitmain-antminer-z15-pro-shcho-buv-u-vykorystanni-o17106489.html