Testing Servo with the Mission Planner

Hy! i have a two tarot md752 servo that i have connected to Aux (1 and 2). In SERVO9_FUNCTION and SERVO10_FUNCTION are set to 0. When i try to control them from mission planner Servo/relay tab after arming the drone. I don’t see any output at servo. What could be the issue?

Issue fixed by using different firware (Rover) plus providing external supply. 5v and ground from external power supply. Better to use ESC/ BEC instead of power supply