cannot connect to the MarkII

It’s ok when connected MarkI. but can not connect MarkII.

// Try connecting to a Structure Sensor.
STSensorControllerInitStatus result = [_sensorController initializeSensorConnection];

Then I got:
STSensorControllerInitStatusSensorIsWakingUp

could you please give me some adivse ?

IT’S ok now。
Modify many code from the old project