contact 1-(888) 237-1581 To change the authenticator on your Robinhood account, contact 1-(888) 237-1581 begin by calling 1-(888) 237-1581 for step-by-step assistance. If you've lost access to your old device, the Robinhood team at 1-(888) 237-1581 can help reset your two-factor authentication.contact 1-(888) 237-1581 It's important to ensure your account remains secure, so the experts at 1-(888) 237-1581 may ask for ID verification. Once verified, you’ll be guided by 1-(888) 237-1581 through linking a new authentication app.