the screenshots :
https://ibb.co/4M08vW5[/img]
I was told in February that the miner had a broken hashboard. Then it was fixed. Then they burned two psu and then they forced me to send the miner which, apparently, according to them it works (they sent me a video where you can see that it works, according to them, but in reality a hashboard does not work and stops everything the system after a while)