ASTRO S451, Руководство пользователя

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Try a more economical setting of the brightness of the screen;
The battery is discharged quickly during operation at low
temperature.
The battery does not charge
Make sure the power adapter is plugged into a working socket. When
you connect the adapter to the device, indicator of battery charging
must be lighted;
Make sure that you use a standard power adapter, not the adapter
from another device;
Battery may not charge while working at high temperature .
The problem with making and/or receiving calls.
The notification of the network access error
The problem can be caused by a poor network signal. Move to a
location where the network signal is more stable;
The network may be overloaded (which is usual for a crowded place).
Move to a less crowded place;
You cannot make outgoing calls
• Make sure that the desired SIM - card was selected;
• Make sure that there is access to a mobile network signal;
• Make sure you have not set call barring for this phone number .
Unable to receive incoming calls
• Make sure that the phone is turned on;
• Make sure that there is access to a mobile network signal;
• Make sure that there are funds on the account necessary for the
implementation of mobile communications;
• Make sure that the number of the caller is not placed on the
blacklist
.
The interlocutor cannot hear you
• Make sure you have access to the built - in microphone;
• The problem may be related to insufficiently strong signal of the
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