Bitmain

Latest Notification

Latest Notification

• ★ APW5 Manual
• ★ RMA Address Update Notification

Customer Support

After Sales Support

• ★ After Sales Support

Account Settings

Account Settings

• ★ Account Settings

Returns & Refunds

Refund

• ★ Refund

Return

• ★ Return

Your Orders

My order

• ★ Your orders

Product Support

Antminer L3++

• ★ Antminer L3++

Antminer E3

• ★ Antminer E3

Antminer X3

• ★ Antminer X3

Antminer V9

• ★ Antminer V9
• V9 Socket connection failed

Antminer A3

• ★ Antminer A3
• A3 Control Board Program Recovery
• A3- Socket connection failed
• A3 Hash rate is low or a hash board is faulty

Antminer T9+

• ★ Antminer T9+
• T9+ Socket connection failed

Antminer D3

• ★ Antminer D3
• D3-Socket connection failed
• D3 The Miner status screen shows no data
• D3 Hash rate is low or a hash board is faulty

APW3++

• ★ APW3++

APW3+

• ★ APW3+

R1-LTC

• ★ R1-LTC

R1

• ★ R1

Antminer T9

• ★ Antminer T9

Antminer S9

• ★ Antminer S9
• S9 No hardware version or BMMiner
• S9 Autotune Hash rate is low
• S9: Socket Connection Failed

Antminer L3+

• ★ Antminer L3+
• L3+ Socket connection failed
• L3+ The Miner status screen shows no data
• L3+ Hash rate is low or a hash board is faulty
• L3, L3 + and L3++ Control Board Program Recovery

Antpool

Antpool Basic Knowledge

• Antpool Basic Knowledge

Antpool Inquiries

• ★ Connect Antminer A3 to Pools_Anpool
• ★ How to Mine ETH&ETC
• ★ How to Calculate Your Earnings in Antpool ?
• ★ Antpool Payment Methods
• ★ How to delete/restore your sub-account?
• ★ How to mine Zecash with CPU?

See all 41 articles

BTC.com

BTC Wallet

• ★ BTC.com wallet

BTC.com Pool

• ★ BTC.com Pool

Policy & document

Product information

• ★ Parameters of Miners and PSUs
• ★ AntRouter data-R1
• ★ PSU data-APW5
• ★ Fan data-S9

Certificate

• ★ Certificate of Conformity for X3
• ★ Certificate of Conformity for R1-LTC
• ★ Certificate of Conformity for V9
• ★ Certificate of Conformity for T9+
• ★ Certificate of Conformity for A3
• ★ Certificate of Conformity for D3

See all 17 articles

Policy

• ★ Return 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

See all 17 articles

Part 8 HashNest redeem miners

• ★ 1. What is redeem?
• ★ 2. How to redeem miners? What should users pay to redeem?
• ★ 3. What if users want to redeem their miners but missed the redemption period?
• ★ 4. What if users find the redeemed miners are not to the correct specification or any devices broken?

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

• ★ 1. What if users find any suspected ip address login in their account?

Part 5 Buy and sell hash power on HashNest

• ★ 1. Where can we buy hash power?
• ★ 2. What is the difference between buying from shop and buying from market?
• ★ 3. What is trade PIN?
• ★ 4. What is the special rule for trade pin setting? What if I forget the trade pin?
• ★ 5. What if your hash power or bitcoin is locked on market?

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

• ★ 1. What if users forget their login password?
• ★ 2. How to change the login password?

Part 2 HashNest register

• ★ 1. How to register?
• ★ 2. Is the email must verified?
• ★ 3. What if the verification email cannot be received?
• ★ 4. Do we need to submit some identification information during registering?

After sales service

Antminer Maintenance

• ★ Can I use the Antminers at home?
• ★ Precautions for Use
• ★ Antminers Dust Cleaning Instructions

Guidance for after-sales

• Repair instructions: Out of warranty

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

See all 8 articles

Status of repair tickets

• ★ How to track my packages
• ★ How to check status of repair ticket
• ★ Why is the status of the repair ticket still uncollected?
• ★ How do I check the status of my repair ticket?

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

See all 11 articles

Payment for repair ticket

• ★ Check the payment for repair after have paid over 3 days
• ★ Repair payment
• ★ Method of paying

Logistics for repair ticket

• ★ Check shipping process of repaired package

Troubleshooting

• ★ Antminer A3 introduction, mining tutorial, evaluation
• ★ How to Search for SN of Your Order
• ★ HS code
• ★ How to Identify Different APW3++ Power Suppliers
• ★ High Temperature Protection Troubleshooting
• ★ D3 and L3+ Different Version Comparison

See all 42 articles

Sales FAQ

Payment & shipment for order

• ★ How to Check and Use Your Coupon Progress
• ★ How to Upload Transfer Proof
• ★ How to Download Proforma Invoice to Make Bank Transfer
• ★ How to Check the Estimated Shipping Date of Your Goods
• ★ Changing shipping address
• ★ How to edit or cancel the orders

See all 16 articles

FAQ for sales

• ★ 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 ?
• ★ Customs Clearance Questions

FAQ about how to place order

• ★ HS code problem while placing order
• ★ How to place an order on Bitmain website
• Manual for placing an order on the official Bitmain website: www.bitmaintech.com.