Please try this: Press the C1 + C2 + Trigger (photo) buttons and keep them pressed and TURN OFF the controller.
By still keeping pressed the C1 + C2 + Trigger (photo) buttons TURN ON the controller.
I tried resetting both controllers.... The master and the slave.. Reset was successful. However I am still unable to get the slave to search out and find the master. for the moment I am at a loss