Bitmain
Latest Notification
Latest Notification
Customer Support
After Sales Support
Account Settings
Account Settings
Returns & Refunds
Refund
- ★ Refund
Return
- ★ Return
Your Orders
My order
Product Support
Antminer S9i
Antminer Z9 mini
Antminer B3
Antminer L3++
Antminer E3
Antminer X3
Antminer V9
Antminer A3
Antminer T9+
Antminer Maintenance
Antminer D3
APW3++
- ★ APW3++
APW3+
- ★ APW3+
R1-LTC
- ★ R1-LTC
R1
- ★ R1
Antminer T9
Antminer S9
Antminer L3+
Antpool
Antpool1
Antpool Basic Knowledge
Antpool Inquiries
- ★ Connect Antminer B3 to Pools_Anpool
- ★ Connect Antminer X3 to Pools_Anpool
- ★ Connect Antminer A3 to Pools_Anpool
- ★ How to Mine ETH&ETC
- ★ How to Calculate Your Earnings in Antpool ?
- ★ Antpool Payment Methods & Fees
BTC.com
BTC Wallet
BTC.com Pool
Policy & document
Product information
Certificate
- ★ Certificate of Conformity for Z9 mini
- ★ Certificate of Conformity for E3
- ★ Relationship Proof-Bitman&Century Cloud
- ★ Certificate of Conformity for S9i
- ★ Certificate of Conformity for B3
- ★ Certificate of Conformity for L3++
Policy
Hashnest
Part 9 HashNest PACMIC V4 contract
- ★ 1. What is a Payout Accelerated Cloud Mining Contract (PACMiC)?
- ★ 2. Purchasing a PACMiC
- ★ 3. Computing principal and profit of an PACMiC
- ★ 4. Profit Calculation Method
- ★ 5. Contract Suspension
- ★ 6. Contract Expiry
Part 8 HashNest redeem miners
Part 7 HashNest deposit and withdrawal
- ★ 1. Does HashNest accept USD deposit? What if users don’t have any bitcoin?
- ★ 2. How to deposit on HashNest?How long will the deposit be completed? Does HashNest provide 24 hours service for deposit? Is there deposit minimum limit or deposit fee?
- ★ 4. How to make sure your withdrawal is on the way? What if the transactions disappear on blockchain?
Part 6 HashNest security
Part 5 Buy and sell hash power on HashNest
Part 4 HashNest 2FA
- ★ 1. What is 2FA? Why are users strongly recommended to apply for them?
- ★ 2. How to deactivate google authenticator verification for reasons?
- ★ 3. What if users lost their phone which bounded with HashNest account? Or users want to change a phone number?
- ★ 4. What if users can’t receive any SMS verifications?
- ★ 5.My 2FA needs to change or is not working. What should I do?
Part 3 HashNest login
Part 2 HashNest register
After sales service
Guidance for after-sales
Miner setting issues
- ★ How to set up a new R1
- ★ Three Ways to Restore Factory Settings (R4/S9/T9)
- ★ How to reset google auth
- ★ How to disassemble miners
- ★ How to upgrade the firmware
- ★ How to set static IP address
Status of repair tickets
Need to return
- ★ Need to return the whole miner
- ★ How to create a second-returning ticket
- ★ How to apply specific replacement within warranty
- ★ Guidance for after sales
- ★ How to create/revise a repair ticket
- ★ How to pack the Hash Board properly
Payment for repair ticket
Logistics for repair ticket
Troubleshooting
- ★ V9 Control Board Program Recovery
- ★ D3 Control Board Program Recovery
- ★ Instructions on fixing the duplicate MAC address for S9i
- ★ Can't connect to the Internet
- ★ Antminer A3 introduction, mining tutorial, evaluation
- ★ How to Search for SN of Your Order
Sales FAQ
Payment & shipment for order
- ★ How to Check and Use Your Coupon Progress
- ★ How to Upload Transfer Proof
- ★ How to Download Proforma Invoice for Bank Transfer application
- ★ How to Check the Estimated Shipping Date of Your Goods
- ★ Changing shipping address
- ★ How to edit or cancel the orders
FAQ for sales
- ★ How to check and pay "unpaid" pre-orders
- ★ How to check your Order Status/Tracking Numbers/Coupon
- ★ How to calculate the BTC / ROI
- ★ Should I pay the import tax or How much tax should I pay?
- ★ Can you put a lower value on the invoice so I can pay less tax?
- ★ When will the product be shipped ?