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Calls cannot be
Call barring is
dialed
The SIM card
The mobile
The mobile
phone cannot
phone is not
connect the
in a service
network
GSM network
The signal is
The charging
voltage does
not match the
voltage range
indicated on
The battery
the charger
cannot be
An improper
charged
Poor contact
activated
is invalid
area of the
weak
Ensure the charging voltage matches the voltage range
charger is
Use the charger specially designed for the mobile phone
used
Ensure the charger plug is in good contact with the mobile
Cancel call barring
Contact your network service provider
Move to the network operator's service area
Move to a place where the signal quality is high
indicated on the charger
18 / 20
phone
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