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Debris on the SIM card
contacts
Use a soft and dry
cloth to clean the
SIM card contacts.
Unable to
connect to
the
network.
SIM card invalid.
Contact your service
provider.
You are not within the
service area of the
network.
Check the service
area with your
service provider.
Poor
signal.
Move to an open
space, or if you are
inside a building,
move closer to a
window.