...

• Flash images because eMMC is empty
• Upgrade to a new release
• Use custom built images

Pre-built images are available on PHYTEC's Artifactory. If you have built your own images, then the images are located in:  $YOCTO_DIR/build/tmp/deploy/images/<MACHINE NAME>/ 

Note that the names of the images differ between releases. YOCTO_IMAGE in the instructions below refers to the Yocto image name that was used to build the image, and YOCTO_MACHINE refers to the machine that was selected to build the image. Refer to the "Built Images" section of the Quickstart pertaining to the specific release you are using for clarification on image names.Pre-built images are available on PHYTEC's Artifactory.

Configure SD Card for Flashing

...