Logged out of my iPhone, can’t sign in to iCloud

The phone says ”Signing in to iCloud” and just sits and spins forever.

I had changed my iCloud password and it said it wanted me to log off and back on.

Don’t seem to be missing anything but it’s a bit unsettling.

Ideas?

PS I have the latest iOS update despite what my Product entry says, I can’t tell which version I have since I can’t access Settings, that being where the sitting and spinning is going on.