Справочник Пользователя для Samsung Epic Galaxy S

In addition to notifications, this panel also provides 
quick and ready access to four device functions. These 
can be quickly activated or deactivated. 

The following functions can either be activated 

 

(green) or deactivated (gray): 

Wi-Fi

, 

Bluetooth

, 

GPS, 

Sound/Vibration

, or 

4G

.

4G and Wi-Fi connections can not be simultaneously 
active. To activate 4G services, you must turn Wi-Fi off 
on your Epic 4G.