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SIM card does not function or is
damaged? Get your SIM card checked
by your network operator.
Network connection cannot be made:
Bad reception? Move to an open space
or if you are in an enclosed space,
near the window.
You are out of range of the mobile
network. For information about
coverage, please contact your
network operator.
SIM card is invalid. Contact your
service provider.
Bad voice quality:
Poor network connection quality on
the part of the network provider?
Press the end key and select again.
You may be routed to a network
connection or phone line with better
quality.
Does the local phone line have bad
quality? Press the end key and select
again. You may be routed to a
network connection or phone line with
better quality.
Try to make the volume louder.
