Thank you @Jocelyn RICARD for the response.Initially I did have X-Cube-SEC-M-H5_V1.2.1 by following "How to start with Secure Manager (customized configuration) on STM32H5" which recommends X-Cube-SEC-M-H5_V1.2.1, I tried it without change any config...

Hi Jocelyn,I have similar issue on the new H5-DK board with SM installation, followed online instructions (Security:How to start with Secure Manager default configuration on STM32H5 - stm32mcu) step-by-step, but failed at sfi secure installation at S...