I can’t update ios 16.6 version

Assuming you have a compatible device, see: Update your iPhone, iPad, or iPod touch - Apple Support

And: If your iPhone, iPad, or iPod touch won't update - Apple Support

If the above Apple articles do not help, please post back with relevant information. 

What is wrong with your telephone and why won’t it let me auto update or update manually to 16.6? #Angry. I have a 13 plus trying to post a screenshot won’t let me! So it says “unable to update an error occurred while trying to check for a software update!”

I have a 13 plus

man46319 wrote:

What is wrong with your telephone and why won’t it let me auto update or update manually to 16.6? #Angry.

And, what happens when you attempt to update?

Any error messages?