Bitmain Antminer S9K/S9 SE Control Board Program Recovery (SD Card Flashing)


Here is a detailed guide showing how to recover the Bitmain Antminer S9K/S9 SE control board and possible solutions to solve the flashing failure.

The Antminer S9k and the Antminer S9 SE are two models in Bitmain Antminer S9 series: Try this method to restore the Bitmain Antminer S9K/S9 SE control board if the miner experiences any of the problems listed below.

This method applies to the following situations:

  • The miner is unplugged while being upgraded.
  • Miner cannot launch because it cannot locate an IP.
  • The miner is limited to using the factory workers by default.

Tools required:

  • Less than 16GB of storage space is recommended for MicroSD cards. It is not advisable to use MicroSD cards with higher capacities because they are prone to errors.
  • A computer running Windows XP or later
  • Card reader


Flashing Instructions :

  1. Then, format the MicroSD card to FAT32 in the computer.
  2. Copy the contents of the image file to the MicroSD card after unzipping it.
  3. The MicroSD card should be taken out of the computer and put into the control board’s card slot.
  4. The control board is powered on. The files will automatically load in about 30 seconds. The green indicator light will always be on when the vehicle is loaded.
  5. Restart the miner after removing the MicroSD. Please restart the miner after more than 30 seconds. (NOTE: Do not turn off the power during the restart process as this will damage the control board and prevent the OTP from turning on.)
  6. Go to the miner interface and turn on the miner. Online firmware upgrades should always be performed. >>Bitmain Antminer Firmware Page

Possible solutions to solve the flashing failure

  1. Make sure the firmware you copied was the right one and reformat the MicroSD.
  2. To make sure it is securely fastened, lightly press the MicroSD.
  3. Wipe the MicroSD with some dust.
  4. Try using another reputable MicroSD.

Please don’t hesitate to get in touch with us if you have any questions.

Scroll to Top