How to perform a factory reset on an Antminer?

A factory reset on an Antminer clears all custom settings, reverting it to default configurations, and is useful for troubleshooting or redeployment.

Jul 15, 2025 at 02:14 am

Understanding the Need for a Factory Reset on an Antminer

A factory reset on an Antminer is often required when troubleshooting persistent issues, changing ownership, or preparing the device for redeployment. This process reverts all configurations back to their original state, removing any custom settings such as IP address assignments, mining pool credentials, and overclocking profiles. Performing a factory reset ensures that the Antminer starts fresh, eliminating potential misconfigurations or software-related problems.

Factory reset should be considered a last resort if other troubleshooting methods have failed.

Identifying Your Antminer Model

Before proceeding with a factory reset, it's essential to identify the exact model of your Antminer. Different models, such as the S17, T17, S19, or L3+, may have slightly different procedures for initiating a factory reset. The most common method involves using either the physical reset button or interacting directly with the miner's web interface.

Antminer S19 series users typically rely on a web-based interface, while older models like the L3+ might require physical interaction via the reset button.

Preparing for the Factory Reset Process

Ensure you have taken the following steps before initiating a factory reset:

• Back up configuration files – If you intend to reuse the same mining pool or network settings, save them in a secure location.
• Disconnect from power sources – Turn off the miner before starting the reset process to avoid unexpected behavior.
• Locate the reset button – On many Antminers, this is a small pinhole near the Ethernet port or on the control board.

Performing a Factory Reset Using the Physical Button

This method applies to older Antminer models where a web interface isn't available or accessible.

• Use a paperclip or similar tool to press and hold the reset button located inside the pinhole.
• Keep the button pressed while reconnecting the power cable to the miner.
• Maintain pressure on the button for approximately 30 seconds after power is restored.
• Release the button and allow the miner to reboot automatically.

After completing these steps, the miner will revert to its default firmware settings, and all previous configurations will be erased.

Resetting Through the Web Interface

If your Antminer has a functional web interface (accessible via a browser), follow these steps:

• Open a web browser and enter the IP address of the Antminer.
• Log in using the default username and password (usually "root" and "admin").
• Navigate to the "System" or "Configuration" tab.
• Select the option labeled "Restore Factory Defaults" or similar.
• Confirm the action when prompted.

Once confirmed, the Antminer will restart and erase all user-defined settings, returning to its out-of-the-box state.

Post-Reset Configuration Steps

After performing a factory reset, the Antminer will typically obtain a new IP address via DHCP. To regain access to the device:

• Check your router’s connected devices list to find the new IP assigned to the miner.
• Access the web interface again using the updated IP address.
• Reconfigure mining pools, worker names, and network settings as needed.

It is crucial to ensure that all firmware updates are applied post-reset to maintain optimal performance and security.

Frequently Asked Questions

Q: Will a factory reset damage my Antminer?

A: No, a factory reset does not cause physical harm to the hardware. It simply clears software configurations and restores default settings.

Q: Can I recover data after a factory reset?

A: No, once a factory reset is completed, all previously stored configurations, including pool details and custom firmware, are permanently erased.

Q: How long does a factory reset take?

A: The actual reset process takes about 1–2 minutes, but additional time may be required to reconfigure the miner afterward.

Q: Is there a way to reset without losing all settings?

A: A full factory reset cannot be performed selectively. If you only want to change specific settings, it's better to edit them manually through the web interface instead of resetting entirely.