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Step-by-Step Guide to Upgrading AvalonMiner Firmware

Start with safety and logs

Power down before opening a miner, label cables before moving boards, and capture logs before repeated reboots erase useful evidence. Record model, firmware, pool, uptime, fan speed, temperature, reject rate, chain count, and the exact error text.

Confirm the fault class

Separate configuration faults from hardware faults first. Pool errors, DNS failures, bad worker names, overheating, weak power, fan faults, and missing hashboards can look similar from the dashboard but require different fixes.

Document the test path

Change one variable at a time and keep the before/after result. Note cable swaps, PSU swaps, firmware changes, pool changes, fan replacements, ambient temperature, and whether the fault follows a hashboard, control board, network, or power source.

When to escalate

Escalate to professional repair when there is a burned smell, melted connector, breaker trip, corrosion, repeated hashboard loss, liquid exposure, or a board-level fault that returns after a basic cable, power, firmware, and airflow check.

After the fix

Run the miner long enough to confirm stable accepted hashrate, fan behavior, chip temperature, reject rate, and pool-side reporting. A dashboard that looks normal for five minutes is not enough evidence for a recurring power, heat, or hashboard fault.

· D-Central Technologies · ⏱ 1 min read

Last updated:

There are two methods to upgrade the firmware on your AvalonMiner: using the FMS batch management system or upgrading the firmware on a single machine. Below, you’ll find step-by-step instructions for both methods.

Method 1: Upgrading Firmware using FMS Batch Management

  1. Download the firmware from Canaan’s support page: https://support.canaan.io/
  2. Launch the FMS application.
  3. Choose the miner(s) you want to upgrade and click “Upgrade” on the main page.
  4. Locate and select the downloaded firmware file.
  5. Click “Open” to begin the updating process.
  6. Once complete, a notification will appear confirming a successful upgrade. If unsuccessful, the IP addresses of the un-upgraded machines will be displayed.

Method 2: Upgrading Firmware for a Single AvalonMiner

  1. Type the IP address of the miner into your web browser.
  2. Log in with the username and password, both set to “root.”
  3. Access the miner’s web interface by clicking “Upgrade.”
  4. Click the white box to browse and select the downloaded firmware file.
  5. Click “Upload” to start the upgrade process.

(New backend system)

  1. Log in to the backend system as detailed above.
  2. Click “Upgrade” to access the upgrade page.
  3. Click “Browse” to find the firmware file and click “Upload” to commence upgrading.

Conclusion

Upgrading your AvalonMiner firmware is a simple process that ensures optimal performance and security for your Bitcoin mining activities. If you have any questions or concerns during the upgrade process, please don’t hesitate to contact your D-Central support team.

D-Central Technologies

Bitcoin Mining Experts Since 2016

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D-Central Technologies is a Canadian Bitcoin mining company making institutional-grade mining technology accessible to home miners. 2,500+ miners repaired, 350+ products shipped from Canada.

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Editorial review and limitations

Reviewed by D-Central's mining hardware and ASIC repair editorial team for practical accuracy, buyer risk, repair context, and operational assumptions. Verify current hardware price, stock, network difficulty, BTC price, power rate, shipping, tax, firmware, and device condition before buying, hosting, repairing, or retiring mining hardware.

Last reviewed May 24, 2026. D-Central, Laval, Quebec.

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Last reviewed May 25, 2026. Added to route educational and product traffic toward exact commercial next steps.