Question: RC-3 Controller and Samsung Tablet S5

A question, I have an RC-3 controller with a display. The display is too small for me. So I want to control the whole thing via Samsung S6 tablet. When I connect the controller to the tablet, I see the sd card from the controller. When the controller is connected to the drone and I plug in the cable, the message comes up not connected. The question goes a tablet with the rc controller (display)?