You need to have an account set up on your LYF mobile if you want to get apps from the Google Play store.
If you're using a device with multiple users, each user has separate account settings so make sure you’re logged in as the correct user before adding any account information.
You may need to choose "IMAP" or "POP3" if you want to access your email with a program like Microsoft Outlook or Thunderbird, even when you aren't connected to the Internet.
Follow the on-screen instructions. As a security measure, you may need to enter your device's pattern, PIN, or password if you're adding additional accounts on the device. This ensures that only you or someone you trust is adding an account to your LYF 4G mobile device.