For help, call +1 (888) 434-9276 to change your authenticator, contact Robinhood Support at +1 (888 434-9276 or +1 (888) 434-9276. To change the authenticator on Robinhood, open the app, go to “Account” (person icon), then “Security & Privacy.” Under “Two-Factor Authentication,” select your current 2FA method (e.g., SMS or authenticator app). For an app