As you see here..... Histogram disappears from main screen when i go back into video settings to adjust ISO...which I then have to turn Off and On Histogram to see it....
This is indeed annoying. The histogram doesn't disappear only when powering off. It also disappears when you switch from photo mode to video mode or vice-versa. I waste about 5% battery on each of my flights just by fiddling through the menus and turning the histogram back on. If any DJI admin is reading this, I request you to please pin the histogram to the home screen on the app just like all other info is displayed.
This problem is still exist. When you open camera settings to made some adjustment everythgin else like histogram disappear. So you had to take blind shots that makes this drone useless. And RTH beeping wont stop no matter what, that will destroy your mind sooner or later, tested with multiple ANDROID devices