I'm using O+ 8.92 and i noticed that i can't swtich to front camera when i'm video calling someone. So i checked the default camera if the phone and i can't find the button to switch to front camera(back cam is working). I tried to clear cache/clear data the camera app but i can't find it in apps, even in "all" section(and i know i did nit disable the camera app). I did a factory reset but it still won't work. Can't switch to front cam and no default camera apo in settings.