I added a SIG general onoff model by modifying nordic mesh SDK example project 'example/light_switch', just modified model ID as below:
client:
#define SIMPLE_ON_OFF_CLIENT_MODEL_ID (0x1001)
server:
#define SIMPLE_ON_OFF_SERVER_MODEL_ID (0x1000)
other:
#define ACCESS_COMPANY_ID_NORDIC (0xFFFF)//as ACCESS_COMPANY_ID_NONE for SIG model
Then the provision can not success, why?