Recovery

How to restore stock firmware

Return a reachable Antminer to factory firmware with HashCore Toolkit and know when SD-card recovery is required.

6 min readStep-by-step guide

Use the Toolkit route when the miner boots and is reachable on the local network. If it does not boot or cannot be discovered, stop and use the exact SD-card recovery procedure for its model and control board.

1

Before restoring

  • Record the full miner model and control-board type.
  • Export or photograph pool, worker and network settings.
  • Use stable power and a wired local network.
  • Confirm that the selected stock image comes from the manufacturer and matches the hardware.
Important: Restoring stock firmware can remove custom settings. Do not assume pool, network or performance settings will be preserved.
2

Restore with HashCore Toolkit

  1. 1

    Open HashCore Toolkit on a computer connected to the miner network.

  2. 2

    Scan the network and locate the miner in the device list.

  3. 3

    Select the correct miner and open Commands.

  4. 4

    Choose Restore to stock firmware and confirm the action.

  5. 5

    Keep power and network connected until the operation finishes and the miner restarts.

3

Verify the result

  1. 1

    Wait for the complete reboot cycle.

  2. 2

    Open the miner IP address in a browser.

  3. 3

    Confirm that the standard manufacturer interface loads.

  4. 4

    Re-enter network and pool settings if required.

  5. 5

    Check that every hashboard, fan and temperature sensor is detected before returning the miner to service.

4

When to use SD-card recovery

Use model-specific SD-card recovery when the miner is not reachable, does not boot normally or the Toolkit cannot complete the operation. The image and preparation steps vary by controller, so do not use a generic recovery image.

  • Reconfirm the exact controller before downloading the image.
  • Follow the manufacturer’s image-writing and LED sequence for that model.
  • Contact support when the controller or recovery target is uncertain.
Continue

Complete the firmware workflow

Return to the guide library to continue with installation, pool setup, tuning or recovery.

View all firmware guides →