Turca, When I go to the PayPal website, I have the option of using either the authenticator, or get a text message with the code. Once I enter the code, I go to my settings and turn off 2FA. That allows me to use the phone app. Once I'm logged in on the app, I go back to the computer and set up 2FA. That produces the QR code to scan with my authenticator. Alternatively, I could type in the whole plain text key to configure my authenticator. Hope that helpts.
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