Do note that the OP has not made any mention of trying to contact the distributor or manufacturer of this knock-off miner. That of course should be the very first thing the OP should have done...
He needs to know it's a knock-off in the first place, and honestly if the gear does 32th at 2800w as promised-- it does not matter what name they put on it, as for contacting the manufacturer, honestly this is usually the last thing I personally do simply because
1-The support at these Chinese websites is terrible, had a ton of issues with my gears, most were solved by trial and error or from information I got online (mostly on this very forum) , while the manufacturer will give only give you the abc of trouble shooting only.
2-In many places, the shipping cost for returning the miner back to china is unreasonable, to the extent that some people rather order new hash board/control board or a PSU than having to pay that much for shipping or wait for months to get their replacement.
I think if OP provides enough information and kernel log, someone will be able to give him the solution for this problem without the need for a crystal ball.
Try giving some useful information about it such as: