I didn't update with the latest FW release

[Kilrah]

Apparently you can do a CSC and take off (or could, hopefully they've added protection since).

 

[Squamer]

Did you update via the app or Assistant? I did my update via the app to the last prior firmware and had similar issues until I refreshed with Assistant. Did you update the batteries and RC as well?

App initially. Now trying to refresh in assistant

 

[Robbyg]

Is this an Android thing? I did not have any kind of forced update with the last one using my iPhone6+. I seem to remember some talk a few years ago that Apple does not allow developers to force updates.