The failure happens when using pre-built SD card Image (2021.2) by using following command: python3 avnet_dualcam_ar0144_stereo_face_detection.py . It seems that there is an architecture mismatch between the DPU in the platform and the compiled XMODEL. Is there any newer version of pre-built SD card image available that i can use for demonstration purposes. when not I'm need to dive deeper according Xilinx answer record: support.xilinx.com/.../DPU-fingerprint-ERROR Thanks Andreas