How to upgrade the firmware for a bitcoin miner

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upgrade firmware of bitcoin miner

Sometimes, your bitcoin miner may stop mining  because of the damage of the firmware inside the controller. In that case, you can upgrade the firmware of your miner to fix it. And also for some cases, you may want to upgrade the firmware of your miner to the latest version so that your miner can get a better performance.

In this tutorial, we will introduce you how to upgrade the firmware of a bitcoin miner. 

We will take the Antminer S7 as an example, but most of this tutorial introduced here should apply to other bitcoin miners  as well. 


{Firmware List}

Below is a firmware list for most of the popular bitcoin miners. Please download the firmware you needed.

Miners Firmware
Antminer S5 SD-S5-20150715-fan_ctrl.tar.gz
Antminer S7 One fan: S7-20160523-700M-1fan-6000.tar.gz
Two fan: S7-20160523-700M-2fan-4320.tar.gz
Antminer S9 11.85 TH/s: Antminer-S9-all-201705031918-550M-user-Update2UBI-NF.tar.gz
12.93 TH/s: Antminer-S9-all-201705031858-600M-user-Update2UBI-NF.tar.gz
14.0 TH/s: Antminer-S9-all-201705031838-650M-user-Update2UBI-NF.tar.gz
Other Submodels: Antminer-S9-all-201704280713-autofreq-user-Update2UBI-NF.tar.gz
Antminer L3+  Antminer-L3+-201704271426-384M.tar.gz
Antminer L3  Antminer-L3-201704271449-384M.tar.gz
Antminer D3  Antminer-D3-201711201715-0M.tar.gz
Antminer T9+ Antminer-T9-PLUS-all-201711242319-autofreq-user-Update2UBI-NF.tar.gz

On the next page(Google drive), click the button on the upper-right corner to download the firmware.

Antminer D3 download the firmware

The firmware you downloaded should be a “.tar.gz” file. DON’T unzip it, use directly the “.tar.gz” file when you upgrade the firmware of the miner in the following tutorial.



  • Download the proper firmware.
  • Power on the miner, wait for a while.

s7 speed test

  • Navigating to “System” –> “Upgrade” page.

firmware upgrade page of bitcoin miner

  • Clicking the button in the red circle.

select button image

  • Selecting the firmware you just download. DON’T unzip the “.tar.gz” file, just select the whole “.tar.gz” file.

select bitcoin miner firmware

  • Don’t select the “Keep settings” option, then clicking “Flash image” to upgrade.

click flash image

  • Then click “Yes” in the popup.

click yes to continue

  • Waiting for 1~3 minutes for the firmware upgrade.

upload firmware

  • Then the system will lead you to the “System Upgrade Succeeded” page, you can see the status is “Rebooting system“.

reboot bitcoin miner

  • Important: Don’t power off the miner or plug out the ethernet cord during the firmware upgrade process.
  • Waiting for 1~3 minutes for the system rebooting.
  • Then upgrade firmware done. Please navigate to the “Miner Configuration” page to configure the miner again.

firmware upgrade done