I'm with the same issue. The client and server ble mesh codes are here in espressif github: https://github.com/espressif/esp-idf/tr ... _mesh_node.

I don't know if I need to change the model in SKD or do something in .c file.

Hello! Do you have platformIO installed in your VS Code? There is one tutorial that I found: https://docs.platformio.org/en/latest/tutorials/espressif32/espidf_debugging_unit_testing_analysis.html#tutorial-espressif32-espidf-debugging-unit-testing-analysis I'm in doubt if this VB kit works jtag well...