1. From the home screen, swipe down from the top of the screen to access Quick settings.
   
2. Tap Settings.
   
3. Tap Accounts.
   
4. Tap the desired account.
   
5. Enter the desired email address and password.
   
6. Edit any additional settings, then tap Done.
   
7. Tap Done.
   
8. Facebook is now ready for use.
   
9. To access Facebook, from the home screen, swipe to, then tap Facebook.