Problem
Poor signal
quality
Poor signal
quality
Mobile
phone does
not power
on
Cannot
initiate calls
Phone
cannot
connect to
the network
Cause
Signal is
obstructed.
Could be due to
tall buildings
nearby or if the
phone is being
used in a
basement.
Line congestion
can occur when
you use your
phone during
peak-usage
times
The battery
doesn't have
power
Call barring is
activated
The SIM card is
invalid
LOGIC B3G
Solution
Move to an area where
signals are not blocked or
obstructed
Avoid using the mobile
phone in high-traffic hours
Charge the battery
Deactivate call barring
feature
Contact your network
service provider
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