1st You must have "One Handed Operation+".You can download it from Play store or Galaxy store.2nd choose your handle. For me I've chosen right handle. As I hold it mostly on my right hand.3rd choose diagonal up from short swipe. Set it to screen off....
First you must have "One Handed Operation+" app on your phone. Then choose any sides of your swipe action. For me as a right handed person I had chosen right handle. Second, you have to enable long swipe. Then choose diagonal down and set it to torch...
It's available in every device that has Good Lock support I guess. But as much as I know it is by default there for flagship devices. Atleast older ones it had. Newly it might be in midranges as well.
