Unit Price: | $ 39 |
1. Power Repair Test Firmware Instructions:
Firmware—whatsminer-testpower-20220420.bin
Scope of use—P21, P21D, P21E, P221C, P222C, P221B, P222B
Control board type—H3, H6OS, H616
2. Tools:
Tool: whatsminer tool 8.1.30
3. Upgrade:
Scan to control board IP via whatsminer tool 8.1.30, check the IP,
click 'upgrade'-'select file'-'star upgrade'.
After the upgrade is successful, check the version information and confirm that the 'version info' is changed to 20220420.
4. Connect the PSU to the control board, and plug in the network cable.
5. Check. Power on the PSU and check the voltage.
6. Power off, change to the next PSU which need to be tested, then just repeat item 4-5.
NOTE: This product is a digital file. Returns are not accepted after purchase.
Payment method:
How to determine product prices and shipping costs?When you are ready to buy one or more products. You can consult the sales Manager to get a sample of the proforma invoice. The category, product price, and freight are included. |
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How to complete the payment?We have the following payment methods. You can tell our sales Manager which payment you prefer and complete it. After the customer service checks and confirms the payment is completed. Provide the proforma invoice. And we will prepare to ship. |
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Cryptocurrency Payment |
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Bitcoin - The payment method at the designated address is efficient and practical and can be used anywhere in the world. Wallet Address |
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USDT - The payment method at the designated address is efficient and practical and can be used anywhere in the world. Wallet Address |
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ETH - The payment method at the designated address is efficient and practical and can be used anywhere in the world. Wallet Address |
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LTC - The payment method at the designated address is efficient and practical and can be used anywhere in the world. Wallet Address |
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USDC - The payment method at the designated address is efficient and practical and can be used anywhere in the world. Wallet Address |
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Bank Transfer |
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Wire transfer - USD - SeaTree Card Number |
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Wire transfer - USD, EUR, GBP, HKD, CNH, CAD, SGD, JPY, AUD, NZD Card Number |
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JP MORGAN CHASE BANK, N.A. Card Number |
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Wire transfer - USD - Zhou sicong Card Number |
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人民币支付 - CNY payment Card Number |
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Other payment methods |
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Cooperation express: |
Q: When will we ship after payment?
A: In order to ensure that the products we ship are in good condition. Issued approximately 1-2 days after receiving your payment.
Q: What if the product is damaged during transportation?
A: We will use a more robust package when shipping to avoid damage to the goods, and we can purchase transportation insurance in advance to reduce the loss of in the transport. although this problem is not common.
Q: What payment methods do we support?
A: We support bank transfer, wire transfer, BTC, third-party guarantee and Paypal.
Q: What should I do if there is a problem after receiving the products?
A: We have established good relationships with maintenance departments in many countries/regions in the world. For example, Venezuela, Iran, etc. If you have any questions within 3 days after receiving the goods, you can apply for after-sales service on the "My Order" page.
Q: Which express we support?
A: We will choose the cheapest and fastest transportation method for you. And we support DHL, UPS, TNT, Fedex, BRE, and also have express delivery services, such as Russia, the United States, Kuwait, etc.