I install the controller firmware on the joystick, and install the master firmware then the normal firmware to the cortex. After this I tether the two together and get(on the joystick) a red joystick light, and green robot and vexnet lights. On the cortex I get 3 green lights. everything should be tethered. I then plug the keys back and and turn on both of them and I get a slowly blinking green light on the joystick and flashing yellow ligts for vexnet and game on the cortex. Occaisionally the joystick will flash all red for a second or all the lights will turn red and stay red. It seems like its untethering or something. I cant download after this or control anything. Also I can only download the firmware from one of my computers. The other computer doesnt seem to recognize the cortex even thought it used to. Any suggestions? thanks!
Try this if you have not already done so. Be sure there is no power to the Joystick. Depress and Hold the CONFIG Switch using the 1/16” Allen Wrench or similar tool. You should feel and hear a “Click” when the Switch is depressed properly. While the Switch is depressed, connect the USB Cable to the Joystick USB port – the other end should already be connected to the PC. When all 3 LEDs on the Module are solid Green, quickly release the CONFIG Switch. Now try to do a Download of Master Code using the VEXnet Utility.
Actually, it just ended up being dead batteries, but thank you very much!