Program the firmware from U-Boot

Digi recommends you program your images into the internal eMMC using the U-Boot bootloader, which is already programmed into your ConnectCore 6 Plus SBC. If your ConnectCore 6 Plus SBC is not booting U-Boot, you need to create a bootable SD card. See Boot from microSD card.

U-Boot fetches the images from a TFTP server in your Linux workstation and programs the images into the eMMC. If you don't have a running TFTP server, follow the installation instructions in Install Digi Embedded Yocto.

You can program the firmware from either TFTP or microSD: