Received a 2019 Roku SE (Black Friday special) as a gift. During set up, it never gives me a code. Instead, it asks me to enter my email address in a box on the TV screen, but I'll be darned if I can figure out how to do that.
If the box is selected, there should be a text box that pops up where you cursor around to pick the letters. If the Roku app on a phone/tablet can detect the Roku, you can use it as a remote to type in text, too.