LG 840G Guia Del Usuario página 81

: You cannot make (or receive) any calls, including emergency calls or
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use other features that require network coverage.
: Deactivates Flight Mode and re-establishes your wireless
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connections.
Security
Various codes and passwords are used to protect the features and
settings of your phone. They are described in the following sections.
Phone lock: You can use a security code to avoid unauthorized use of
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the phone. If you set phone lock to When Power On, the phone will
request a security code whenever you switch the phone on. If you set
the phone lock to Lock Phone Now, your phone will lock immediately.
Change Codes: The Change codes feature allows you to change your
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current password to a new one. You must enter the current password
before you can specify a new one. You can change the access codes
for: Security Code
79