矿机不同于消费类电子产品，而是根据顾客需求特殊定制的、用于投资的产品，投资需谨慎。本产品售后服务政策如下，一旦购买，即视为对本政策的认同。

1. 无论是否发货，付款后均不能退款、退货。
2. 矿机产品的保修期为自发货之日起180天。
3. 由于市场波动，在您购买后，产品价格可能会随时调整。我们不承担事先通知、价格补偿的义务。

以下情况会使保修失效：

1.矿机本身被拆卸，私自改动、更换元器件；
2.雷击，电压浪涌，劣质电源等造成的损坏；
3.进水、电路板和元器件受潮、出现腐蚀造成的损坏；
4.电路板存在烧毁痕迹的或者芯片被烧毁的；
5.超频。

如果发生了以上情况，BITMAIN官方为您矿机提供收费维修服务。具体流程请参考官网的售后流程。

1. A 180-day warranty is provided starting from the shipping date. To avail this warranty a repair ticket must be generated by the customer on Bitmain's website. Overclocking the miner will void the warranty immediately.

2. The warranty only applies to the original purchaser who purchased the machine directly from Bitmain. Once the miner is resold warranty coverage becomes the responsibility of the re-seller.

3. All sales are final. No refunds will be granted. Defective miners can be repaired for free if they fall under the Bitmain warranty policy. After the warranty period, machines can be repaired at the cost of parts and labor.

4. The following events will void the warranty:

    a. Customer removes/replaces any components by himself without receiving permission from Bitmain first;

    b. Damage caused by poor power supply, lightning or voltage surges;

    c. Burnt parts on hash boards or chips;

    d. Miner/boards/components damage due to water immersion or corrosion due to wet environment.

5. For all repairs or RMA, within warranty or not, customer must return the defective parts at his/her own expense after opening a support ticket and troubleshooting with Bitmain's instructions.

6. Bitmain will cover shipping cost when shipping a replacement unit within the warranty period.

7. If you notice there are some loose heatsinks when you receive the miner, please inform us by email to info@bitmaintech.com within 3 days from the date the package is received according to UPS/DHL/FEDEX's website.

8. Bitmain does not take any responsibility for or compensate for any loss as result of downtime caused by delays in transportation as a result of custom formalities or other reasons.

Please read Bitmain’s Terms & Conditions for a complete list of conditions and terms that apply to all orders placed on Bitmain.com