Sometimes when unlocking a location in the DJI Fly App it fails and tells you to "restart the DJI Fly App". How is this achieved on the  DJI RC controller since there is no way to close or open the app manually?

Turn off and on again.

Hello there BrianKushner. Thank you for reaching out and for giving out these information. For us to be able to assist you with regards to this matter. Kindly please send an email to our DJI Flysafe Department at flysafe@dji.com for us to be able to help you further. Thank you.

i have never had such a promt to be honest

I only had this message come up once.  I turned off the controller and then restarted it and the message was gone.  

Thanks everyone.