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Troubleshooting and FAQs
Problem Possible Causes Possible Solution
Unable to
connect to the
network
(U)SIM card invalid. Contact your service provider.
You are not within the network’s service area. Determine 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.
PIN code is
blocked
You have entered an incorrect PIN code three
consecutive times.
Contact your service provider. If the service
provider provides the (U)SIM card’s PUK code,
use the PUK code to unlock the (U)SIM card.
Unable to enter
information into
the phone book
The phone book’s memory is
already full.
Delete unnecessary data from
the Directory.