Background of numbered cells on my new iPhone SE

Hey there, durham_785.

Welcome to the Apple Support Communities! Thanks for posting about seeing a grid on your iPhone after setting it up. We'd be glad to see how we can help.

This sounds like it may be a setting within the Accessibility features on your iPhone. Check Settings > Accessibility > Voice Control > Overlay and see if Numbered Grid is selected. If it is, you can disable it from there. You can learn more on how to Use Voice Control to interact with iPhone here.

Thanks.

Great to hear that this solved the issue, durham_785.

If you run into any other issues, be sure created new thread for support.

Have a great rest of your day.