RE: APP fail after DFU

Vidar Berg — Mon, 28 Dec 2020 13:30:03 GMT

Hello,

Fault id 0x4002 corresponds to NRF_FAULT_ID_SDK_ASSERT which indicates that one of the assert checks failed during FW activation. Can you try to read out the info pointer like we do in the app_error_weak.c:app_error_fault_handler() used by the regular BLE examples to find out which assertion it is? I think it's a bit strange that it doesn't occur more consistently.

Log file name and line number of where the assertion occurred:

        case NRF_FAULT_ID_SDK_ASSERT:
        {
            assert_info_t * p_info = (assert_info_t *)info;
            NRF_LOG_ERROR("ASSERTION FAILED at %s:%u",
                          p_info->p_file_name,
                          p_info->line_num);
            break;
        }

Best regards,

Vidar