I Just Found the following WIKI
https://wiki.lynxmotion.com/info/wiki/lynxmotion/view/lynxmotion-smart-servo/lss-button-menu/
is it possible the problem is my servo is on RC mode? but i dont understand what is the meaning of button menu which is used to change the servo mode. there is no button / push button in the LSS adapter board or in the servo. and i have tried the 5v to the servo’s rx pin for 30s, the red led blink once… but still can not find servos