Using my PC and DJI Assistant 2 I updated the software of my Mavic 2 and the Smart Controller. All seemingly went well. When I fired them up it asked me to link them which I did (hence a green light on the controller and the drone. My dilemna is I can't use the standard sticks down to start the motors? I have no error messages and can find no apparent reason why this is happening; I have 3 one year old batteries and they all are in fine shape. I've flown the M2 for over a year with virtually no problems so I'm stumped. I've read a lot online here and google search and from DJI and tried tweaks but nothing so far has helped. I hope someone out there has my solution. Your help much appreciated. Thanks, Craig