My 3DR Solo Drone is stuck at the preflight update screen on the controller and I cant update it through the app as it says "SOLO Not Found". I tried factory resetting it by pressing the button on back. It blinks the Orange LED as told..Updates the controller but doesnt reboot on its own and wouldn't connect to the drone. It worked the last time we tried but now, doesn't. The only way we have access to the drone is through SSH.