If you uploaded your EFIN application to Intuit, the firm information in the software and that prints at the bottom of a return, should update automatically.

Intuit somehow switched my firm address to my home address, I had to upload a new copy of my EFIN summary to Intuit, it was changed in my software within 48hours, I didn't have to do anything.

You may have to go to Tools>License Products but I don't remember having to do that.