Samsung SPH-L520ZKPSPR - Manual (Page 90)

When you use data services, your user name is submitted to identify you to the Nationwide
Sprint Network. Your user name is automatically programmed into your phone. You don’t have
to enter it.
Update Your User Name
If you choose to change your user name and select a new one online, or make any changes to
your services, you must then update the profile on your phone.
1. Press and tap > Settings > More tab > System Update.
2. Tap Update Profile.
4G Services
4G is a service that must be included in your service plan and also available within your area.
4G coverage is currently available in only certain markets. For more details on 4G availability go
to:
sprint.com/4G and click the See the coverage map link.
Note: If 4G service is not included in your service plan, the 4G icon will not appear in the
Notifications area.
4G is up to 10x faster than 3G (based on download speed comparison of 3G's ~ 600 kbps vs.
4G's ~ 6 Mbps). (Actual speeds may vary.)
Not all services are available on 4G and coverage may default to 3G/separate network where
4G is not available.
Important! 4G service must be added to your account before attempting a connection to the 4G
network.
Depending on which icons appear within the Notifications area, your services and features will
change. The following table indicates what functions and features are available when
combinations of these service icons appear:
Icon Description
3G Coverage: The phone is connected to the Sprint 3G network. The icon spins
when data is being transferred.
4G Coverage: The phone is connected to the Sprint 4G network. The icon spins
when data is being transferred.
Virtual Private Networks (VPN)
From your phone, you can add, set up, and manage virtual private networks (VPNs) that allow
you to connect and access resources inside a secured local network, such as your corporate
network.
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