Reset Settings [Menu 4-7] - LG G5300i Guide De L'utilisateur

Manual [Menu 4-6-2]
The phone will find the list of available networks and show you
them. Then you can select the network which you want to use if this
network has a roaming agreement with your home network
operator. The phone let you select another network if the phone fails
to access the selected network. If you switch off the phone, the
phone will be reset to Automatic.
Preferred [Menu 4-6-3]
You can set a list of preferred networks and the phone attempts to
register with first, before attempting to register to any other
networks. This list is set from the phone's predefined list of known
networks.
User define [Menu 4-6-4]
You can add entries or delete new ones from the network list.
This can even include new networks whose network codes are not
known to the handset. To do this, select and then enter the network
code, country code and network name.

Reset settings [Menu 4-7]

You can initialize all factory defaults. You need Security code to
activate this function.
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