Bitmain is becoming an scam business, they were selling defective R4 which have been discontinued most likely for that reason.

They agreed to replace the R4 for T9 if I paid the hashing difference in hash rate, since the R4 failed with in a few days of running. I did pay for the difference in hashing rate in Bitcoins.

They have both of my T9 miners for about 6 weeks (6 weeks after being received)  and are failing to ship, 3 weeks ago they promised they would ship within 5 days and failed.

Avoid this crooks they will not honor the guarantee as they should.

Most likely they are mining with my hardware.

I initially suggested just sending them the bad parts and they refused, they said I had to ship the whole miner. They are crooks there is no reason to hold my miner with them for such a long time, they are becoming like KNC, Butterflylabs and the rest of the crooks.

who knows if they will even ship my T9 miners.