My team has been experiencing difficulties concerning the tethering between VEX 2.0 keys for the joystick and the cortex .
The problem is that we tether it successfully,both the cortex and joystick are turning green.We updated the firmware on both cortex and joystick using the firmware updater
When I read your question I don’t understand what the problem is. When tethered, leds on the cortex and joystick will turn green, that’s normal. What is the problem you are having? Does tethered control not work?