I would like to warn all of you out there regarding the S11 miner. I bought a batch recently and half of them could only get about 3.2T Hashrate even when overclocked. Advertised is 3.83T at factory settings.

I asked support and they said it's the mining pool problem, there's nothing wrong with their miners. I have tried all the mining pools out there and all of them were reporting only 3.2T.

I have upgraded to the latest 11 May firmware and the issue remains. They want me to ship back the miners at my own cost to be replaced but I won't be doing that. The loss in income and shipping fees will not be worth it. So beware if you want to purchase anything from Innosilicon again. The support sucks to the core.

I can provide evidence but the conversations are in Chinese. Anyone who wants evidence of the conversation can PM me.