Hi, the IOT2050 uses secure boot to ensure the integrity of the system, which is why your unsigned custom image fails to boot (more information see here).

1. Compatibility: The example image is specifically designed for the IOT2050 hardware and includes necessary drivers and configurations
2. Debian-based: The example image is based on Debian 11, which aligns with your requirement
3. Customization: You can modify the example image to suit your specific needs

Steps to Create a custom Image:

1. Download the Example Image from our Download Page
2. Use the meta-iot2050 layer to modify the example image
3. Sign your Image and Flash it to the IOT2050

You can find more relevant information in this topic.

BR