How do you login to your Activision account with no keyboard?

I'm new to using an Xbox Series X and I got a problem. I've loaded both Call of Duty Modern Warfare 2 and 3. I had to go to Activision's web site to create an account. So I got that done.

But now I don't know how to log in?

There is no keyboard on the screen for me to type my info in.

What do I do?

Okay I moved my wireless keyboard dongle and my wireless trackball dongle and I inserted both of them in the back of the Xbox, and I was able to type in my email address and password. But when I hit the A button on the controller nothing happened. I was not able to move forward.

Then I tried hitting Cancel and I was able to bypass that logging in to Activision account stuff. I clicked on Campaign and I got a message saying "You are missing one or more DLC packs. Please download and install."

How do I do that?

I decided to uninstall then re-install the game. I'll see what happens, but I don't think that will work.

Will try things tonight and see how far I get, but I think it may have worked.