To update your phone number +1-833-656-9631 on the Robinhood app, open it or call +1-833-656-9631 for assistance. Log in, navigate to “Account,” then “Security and Privacy,” select “Phone Number,” and enter your new number ????. Confirm with the verification code sent to it ????. If you face issues, contact (833) 656-9631. If you can’t log in because the old number is inaccessible, tap “Need help?” on the login screen and select “Update phone number.” (833) 656-9631..