Sky Devices Platinum B4 Manuel De L'utilisateur page 13

Poor received
signal quality
The mobile
phone cannot
be powered on
Calls cannot be
dialed
The mobile
phone cannot
connect the
network
The battery
cannot be
charged
Signals are obstructed.
For instance, radio waves
cannot be effectively
transmitted nearby a high
building or in a basement.
Line congestions occur
when you use the mobile
phone in high-traffic
hours
The battery energy is
exhausted.
Call barring is activated
The SIM card is invalid
The mobile phone is not
in a service area of the
GSM network
The signal is weak
The charging voltage
does not match the
voltage range indicated
on the charger
An improper charger is
used
Poor contact
-11-
Move to a place where
signals can be effectively
transmitted
Avoid using the mobile
phone in high-traffic
hours
Charge the battery
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
Ensure the charging
voltage matches the
voltage range indicated
on the charger
Use the charger specially
designed for the mobile
phone
Ensure the charger plug
is in good contact with
the mobile phone