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Problem
Cannot turn
your phone
on
SIM card
error
Unable to
connect to
the network
Cannot
answer
incoming
calls
Possible causes
Battery power has been
depleted.
SIM card malfunction or
damage.
SIM card inserted
improperly.
Debris on the SIM card
contacts.
SIM card invalid.
You are not within the
network's service area.
Poor signal.
You have activated the
Call barring feature.
Possible solution
Recharge the phone's
battery.
Take the SIM card to
your service provider for
testing.
Insert the SIM card
properly.
Use a soft, dry cloth to
clean the SIM card
contacts.
Contact your service
provider.
Check the service area
with your service
provider.
Move to an open space,
or if you are inside a
building, move closer to
a window.
Go to Settings > Call >
Call Barring Settings,
and then select
Deactive All.
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