Upgrade from MicroSD card


This article mainly introduces how to use a MicroSD card to update the firmware on the motherboard. But it is only limited to the case where the firmware is smaller than 4G, otherwise please refer to “If the firmware is larger than 4G SD upgrade card making tutorial”.

Preparatory work

  • Firefly-RK3399

  • Firmware

  • Computer host

  • Type-C data cable

  • MicroSD card (ie TF card)

GO to the SD Firmware Tool download page to download SD_Firmware_Tool and decompression.

Run SD_Firmware_Tool.exe


  1. Downloader the tool SD_Firmware

  2. You can modify the config.ini file, set Selected=1 to set the language to Chinese, and set Selected=2 to set the language to English.

  3. Insert MicroSD card.

  4. Select the device corresponding to the MicroSD card from the combo box.

  5. Check the SD startup option.

  6. Click the select firmware button and select the firmware in the file dialog box.

  7. Click the start creating button.

  8. The warning dialog box will be displayed, and select yes to ensure that the correct MicroSD card device is selected.

  9. Wait for the completion of the operation until the prompt success dialog box appears: _images/sdfirmwaretool_done.en.jpg

  10. Unplug the MicroSD card.