LG G3 User Manual page 165

Connected devices are listed at the bottom of the screen.
Bluetooth tethering: Tap the Bluetooth tethering switch
On or Off. On shares the phone's internet connection with other
Bluetooth devices.
Help: Displays information regarding mobile broadband connection,
mobile hotspot, and Bluetooth tethering.
NETWORK
Mobile networks: Sets up options for data roaming, networks, and APNs
(Access Point Names).
Mobile data: Enable to enable data access over the mobile network.
There is one more menu about Data roaming.
System select: Sets your network mode and CDMA roaming mode.
Network mode: Sets the network mode. Choose from Global, LTE/
CDMA, and LTE/GSM/UMTS.
LTE/GSM/UMTS settings: Sets the network submode and network
operators.
Access point names: Sets up APN for data service. Tap an APN in the
list, tap the APN name, edit it as necessary, then tap the Menu icon
(at the upper-right corner of the screen), then tap Save or Discard.
VPN: Sets up and manages Virtual Private Networks (VPNs).
NOTE Tap the Menu icon
settings. From the Basic VPN setting, it accesses Always on VPN.
(at the upper-right corner of the screen) to access additional
Settings
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to toggle it