From a Home screen, navigate: Apps icon > Settings > Accounts.
Tap Add account.
Tap Google.
Enter the Gmail address then tap Next (lower-right).
Enter the Password then tap Next.
To continue, review the Terms of Service and Privacy Policy then tap Accept (lower-right). To review the Terms of Service and Privacy Policy, tap the appropriate link and language then tap Close (at the bottom) when finished.
If preferred, tap Back up data to your device's apps, app data, settings and Wi-Fi passwords to enable then tap Next: Enabled when a check mark is present.
If presented "Set up payment info", tap Remind me later then tap Next. To set up payment info after adding a Google account: