21/9 /24 till not available india

I am used samsung s24 ultra last 5 month i face issues automatic restart and last security patch update is june and till September not update errors is your current software version isn't supported please visit samsung service center

My samsung s22 ultra only showing jio sim 5g not showing 5g + but same area my mi 12 pro showing 5g+ network which problem samsung s22 ultra