4479 Desserte Nord Autoroute 440, Laval, QC H7P 6E2

This guide outlines the process for S19/S19 Pro control board program recovery using SD card flashing, which applies when the miner powers off during upgrade, cannot start or find an IP, or when it can only use default factory workers. Explore the required tools, software download links, and follow the step-by-step instructions for successful recovery.

Tools Needed

  1. MicroSD card (recommended capacity below 16GB)
  2. Computer with Windows XP or later
  3. Card reader

Software Download Links

  1. S19 card flashing firmware: https://service.bitmain.com/zh/support/download?archivesId=00720200423151152095eOXH787h0653&type=3
  2. S19 Pro card flashing firmware: https://service.bitmain.com/zh/support/download?archivesId=00720200423151207820aGRJMyrT06BE&type=3

SD Card Flashing Instructions

  1. Insert the MicroSD card into the computer and format it to FAT32.
  2. Unzip the downloaded firmware and copy its contents to the MicroSD card.
  3. Remove the MicroSD card from the computer and insert it into the control board’s card slot.
  4. Power on the control board and wait for 30 seconds. The green indicator light should be steady when the files load successfully.
  5. Remove the MicroSD card and restart the miner within 30 seconds. Do not power off during the restart process.
  6. Access the miner interface and upgrade to the latest official firmware.

Troubleshooting Flashing Failure

  1. Reformat the MicroSD card and confirm the correct firmware is copied.
  2. Press the MicroSD card gently to ensure proper attachment.
  3. Clean and dust the MicroSD card.
  4. Try a different known good MicroSD card.


Follow this comprehensive guide for a successful S19/S19 Pro control board program recovery using SD card flashing. If you need further assistance or support, feel free to reach out to D-Central Technologies for expert guidance. We provide a variety of services, from consulting and hardware sourcing to maintenance training and mining support. Contact us today!