Can't turn off the Air 3

[KenG]

I haven't flown my Air 3 for about a year. I just charged up the batteries and downloaded the latest upgrade firmware to get ready for tomorrow but now cannot shut down the aircraft. I read somewhere that it's not good to pull the battery out of a powered up device so guess I'll just let the battery run down.

Any suggestions as to what's going on?

 

[AMann]

Double click the battery button? Sound like a battery issue?