S19j/S19j Pro Control Board Program Recovery

This method is suitable for the following situations:

  • The miner was powered off during the upgrade process.

  • The miner cannot be started (cannot find IP).

  • Miners can only use the default factory workers.

Tools needed:

  • The recommended capacity of the MicroSD card is less than 16GB. It is not recommended to use larger capacity MicroSD cards because they are prone to errors.

  • Computer running Windows XP or higher.

  • Card reader

Click the link below to download the firmware:


download S19j firmware 

About the control board of S19j/S19j Pro

S19j/S19j Pro has two control boards with different structures, Integrated control board and Combined control board, the SD card is inserted in different positions.

1. Integrated control board (7007 control board)

7007 control board 

SD card on control board 

2. Combination control board, composed of IO board and BB board.

combination control board 

There is no SD card slot on the body panel. You need to open the cover and insert the SD card from the inside. The cover needs to be opened from the back of the machine. The steps are as follows:

(1) Unscrew the screw;

(2) Press the button;

(3) Lift up the cover and pull it out

S19j control board 

press the button 

Operation method:

1. Insert the MicroSD card into the computer and format it as FAT32.

2. Unzip the downloaded image file and copy the content to the MicroSD card.

downloard image file 

3. Remove the MicroSD card from the computer and insert it into the card slot on the control board.

4. Power on the control board. Allow the file to load automatically for approximately 30 seconds. After loading, the green indicator light will be steady.

5. Remove the MicroSD and restart the miner. Please restart the miner if it exceeds 30 seconds. (Note: Do not power off during the restart process. Power off will cause the OTP to fail to boot, and it will also damage the control board.)

6. Turn on the miner and enter the miner interface. Remember to upgrade the latest official firmware online.

Possible solutions to the failure of flashing

1. Reformat the MicroSD and make sure you copied the correct firmware.

2. Press the MicroSD lightly to make sure it is well connected.

3. Dust and clean the MicroSD.

4. Try to use another good known MicroSD.

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