Dear DJI,Cc: someone who found the solutions to help me out,

I'd bought DJI Osmo Mobile 3 days ago and set up  with Galaxy Note 5.
Installed DJO Go from Google Play Store and sooner appear upgrade firmware does it before start use it.
learn to how calibrate and does shooting photo and take video with DJI Go.

Then try to active track as tutorial online.

Not working.

Reinstall Apps / upgrade again.
Still the same.

please help me how to do it,

Many Thanks,
Ko Winnie.

Sorry, we're working on this issue. You can use an earlier version for now  https://apkpure.com/dji-go/dji.pilot

Unlock the screen rotation lock function of your smartphone and work perfectly