1. Go to the Salesforce login page and enter your credentials
2. On clicking the Login button you will be redirected to the Connect Salesforce Authenticator page
3. Click choose another verification method
4 Select use verification codes from an authenticator app
5 Download and install the Gooogle Authenticator App on your mobile device.
6 Use the app to scan this QR code.
7 Enter the code generated by the app and click connect.
