it will just reverts to main menu
sir yes iam in camera mode for fpv, while flying it will just go back in the main menu, i just push camera button so that i can return to fpv mode, sometimes 5-6 times while flying , for your info also iam using android version , note 4 samsung
and also if preview quality is set to 640x 480 30 fps and 15 pfs my camera view is pixelized, so i setcit only to 320x 240 at 15 pfs only