u/MaterialIll6244

I wanna upgrade my Typhon Mega 665 to a brushless setup. Are these all I need to upgrade it?

Hi, I recently purchased the ARRMA Typhon 665 with the SLT2 transmitter. It was working fine out of the box, but when I went to turn it off and on again, the transmitter stopped moving the car. No steering, no throttle. The Steering trim makes the wheels turn, but that's it. Anyone know how to fix this? Checked the wires and everything, and nothing seems to be broken