So this is something I have found more and more frustrating with my S9: When on a call in speakerphone mode, the screen blacks out within like 30 seconds. This is incredibly annoying when I need to interact with the keypad, like punching through menu options. By the time the automated system on the other end has gotten to the menu option I need, my screen has gone dark and I need to press the power button to activate it again, often also inadvertently hitting something else and knocking me out of the phone screen.
My S5 never did that. Whatever screen timeout I had it set for (e.g., 5 min) is what the call screen would do too as long as it was in speakerphone mode. I've searched some forums and this seems to be a commonly complained about problem. Has anyone with an S9 here found a good workaround?