Iphone 6 s plus up to date on version...red notification for phone and messeges is not apparent simple or easy. at least for me to clear.? thanks..until I get an informed method I am going to do the one way that works- clear out and reboot...thanks
Normally the red badge remains until you read/see all the notifications/ messages. Then it should disappear. If it's messed up & doesn't clear after reading all messages then follow the above advice.