S19/S19 Pro control board program recovery (SD card flashing )

This method applies to the following situations:

• The miner is power-off in the upgrading process.
• The miner cannot start (cannot find IP).
• The miner can only use the default factory workers.

Tools Required:

• The MicroSD card recommended capacity of less than 16GB. Larger capacity MicroSD cards are not recommended as they are very susceptible to errors.
• A computer running Windows XP or later 
• Card reader

Software Download Link:

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

Flashing Instructions :

1. Insert MicroSD card into computer and format to FAT32.
2. Unzip the downloaded image file and copy the contents to the MicroSD card.
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 about 30 seconds for the files to load automatically. When loaded, the green indicator light will be steady on.
5. Remove the MicroSD and restart the miner. In over 30 seconds, please reboot the miner. (NOTE: do not power off during the restart process; power failure will cause the OTP to fail to turn on which also damages the control board.)
6. Power on the miner and access the miner interface. Remember to upgrade the latest official firmware online. 

Possible Solutions to Solve the Flashing Failure

1. Reformat the MicroSD and make sure you've copied the correct firmware. 
2. Press the MicroSD softly to ensure it's well attached. 
3. Dust and clean the MicroSD.
4. Try with another good known MicroSD.

If you have any questions, please feel free to contact BITMAIN Customer Support.

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