I have tow jio sim cards and they worked absolutely fine on aother phone (samsung and apple), recently I switched to s23 ultra and I am unable to turn on call waiting optipn, it is just grayed out. Please help me if there is any workaround to this. A...

tried that too, checked by connecting samsung smart switch that also did not work.

I am still waiting for the Pie update on my note8 SM-950F. Even theast security update I recieved was in December 2018 since then there hasnt been any update. dont know whats wrong.

not me