The reset pin, mode selector switch, and micro-SD card slot are located on the
front of the SmartLynq+ Module, as shown in the following figure.
Figure 1. Front View Connections
The SmartLynq+ Module MODE switch setting determines the source from which the module boots. When the mode is set towards MICRO SD, the module boots using the SD card image. When the MODE switch is set away from MICRO SD, the module boots from the EMMC image. Note that you must have written an image to the eMMC for the system to boot properly.