# Using MFA Google Authenticator

If you have already downloaded and installed **Google Authenticator** on your smartphone, open **Google Authenticator** on your smartphone.

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXeCcsfXKnTAgK78i8_285RrH-dbMBqLEJZQSUy95K3yYiPUdYpHy-az8BES5QnQhmLK3TEnPqDWVRlonwFvNWzKBGo4nctN0Sq_0KLQkNSG6TChgSxaDNx4ydnQ4aJosmBrOEG_KnssYXwOpLwC2XsPDNA?key=kdPXzTZSEO5MGZNpqgH69A" alt="" width="188"><figcaption><p> Google Authenticator</p></figcaption></figure>

On the **Google Authenticator** main page, tap the **Add a Code** button. There are two methods to add an account to **Google Authenticator**:

1. Scan QR Code.

To use the QR Code, make sure you have saved the QR Code generated after activating Multi-Factor Authentication in the **Deka GPU Portal Service**. Simply point your smartphone camera at the saved QR Code. The 6-digit code, which changes every minute, will appear automatically.

2. Enter a setup key.&#x20;

To use **Enter a setup key**, simply enter the account name and the key that you have saved, and then tap the **Add** button. The 6-digit code, which changes every minute, will appear automatically.


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