Hi, I searched my archive for RCBBUG actions, and sorry I cannot find examples of when I used it, (But I travel a lot and wont be home again for 4 months, where I know I have some). So, please be very careful. It is not like the menu commands which say “are you sure you want to do this”, if you use RCBBUG, the commend is performed, regardless of the safe integrity of the switch. Perhaps your Nokia support team could give you some advice.