Notes: This controller is suitable for T9+.
Please do not keep the configuration when upgrade the corresponding firmware before using your new controller.
To learn how to disassemble and reassemble the control board of your miner, you may refer to this video.
To learn how to upgrade firmware of miner, you may refer to this article.
1.A 90-day warranty is provided from shipping out date. To avail this warranty,a Repair ticket must be generated by the customer on Bitmain's website
2. All sales are final. No refunds will be given. Defective machines can be repaired for free under the Bitmain warranty policy. After the warranty period, machines can be repaired for the cost of parts and labor.