Prob has the Nicehash FIRMWARE wich was known to be "manipulated".

the Custom FW from nicehash has a backdoor were this scammers let them change your mining settings.


It was aknown issue and thats who nicehash started, they were focused on custom firmwares at the beggining rather than pool.



the Nicehash firmware backdoor can be removed by flashing to org bitmain firmwares , you need to clean the entire memory from the controller board "BBB".