Biden2020prez figured out that the button is mislabeled, "123", (as in, if you want to change the input style). Clicking that is "enter"...
By the way, I just got an update notification. It's dated from July, but I've been using the phone for months, and I just now got it. I can't update, (it just says "error" and reboots when I try), probably because my bl is unlocked, and I've got other mods going, (disabled system apps, added Google stuff, etc.). Do you know what that update is?