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

This comprehensive guide covers S19j/S19j Pro control board program recovery using SD card flashing. It’s applicable in situations when the miner powers off during the upgrading process, cannot start or find an IP, or only uses the default factory workers. Learn about the required tools, firmware download links, and follow step-by-step instructions for a successful recovery.

Tools Needed

  1. MicroSD card (recommended capacity below 16GB)
  2. Computer with Windows XP or later
  3. Card reader
  4. USB storage disk (16GB and below, A113D control board only)
  5. OTG cable, Micro USB port to USB female connector (A113D control board only)

SD Card Firmware Download Links

  1. S19j: https://service.bitmain.com/zh/support/download?archivesId=007202106211809481183UlDm9T90668&type=3
  2. S19j Pro: https://service.bitmain.com/zh/support/download?archivesId=00720210621181015159c1tDVn9c06A0&type=3

Control Boards Overview

S19j/S19j Pro has three different control board structures: Integrated control board (7007 Control board), Integrated control board (A113D Control board), and Combined control board. The SD card insertion differs for each control board type.

  1. Integrated Control Board (7007 Control Board):
  2. Integrated Control Board (A113D Control Board):
  3. Combined Control Board (IO Board + BB Board):

SD Card Flashing Instructions

  1. Format the MicroSD card to FAT32. [insert image mceclip0.png]
  2. Unzip the downloaded firmware and copy its contents to the MicroSD card.
  3. Insert the MicroSD card into the control board.
  4. Power on the control board and wait for 30 seconds. The green indicator light should be steady on when 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.


This guide provides an optimized and comprehensive overview for S19j/S19j Pro control board program recovery using SD card flashing. Follow these step-by-step instructions, firmware download links, and troubleshooting tips for a successful recovery.