From a Home screen, swipe up or down from the center of the display to access the apps screen.
These instructions only apply to Standard mode and the default Home screen layout.
Navigate: Settings > Accounts and backup > Accounts.
Tap Add account.
If presented, enter the current PIN, password or pattern.
Enter the Gmail address then tap NEXT.
Enter the password then tap NEXT.
If presented, tap the Back up to Google Drive switch to turn on or off then tap Accept.