The tutorial of 2FA for iOS

1. Open the App Store in your Apple phone.

2. Search “Google Authenticator”. 

3. Google Authenticator will show up
4. Click "get" to start downloading
5. Open it and click "being setup"

6. Click "Scan barcode" to scan the 2FA page on BigONE

7. A set of 6 digits number appears.

8. Fill this number into the 2FA registration page to complete the registration process.