ASTRO S451, Руководство пользователя

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At the time of fully charged battery power icon on the screen
is completely filled, and animation indicating the charging
process will be suspended .
Note:
In order to maintain a long - term performance of the
battery and prolong its service life, please follow the
instructions below :
• Before first use, it is recommended to connect the device to
the power supply for 8- 12 hours to fully charge of the battery;
• Do not charge the device at high temperature;
• Do not permanently charge the device: You can do this at a
time when the display shows the low battery;
• If you are not using the device for a long time, recharge the
battery at least once in two weeks, do not wait for the moment of
a full discharge .
ATTENTION!
Improperly connecting the charger adapter can
cause serious damage to the phone. The warranty does not cover
any damage resulting from improper use of the device and
related accessories .
Unauthorised chargers or cables can cause batteries to explode
or damage your device.
Inserting of SIM-cards
This phone allows you to simultaneously use two SIM - cards.
You can use SIM - cards with different numbers from the different
providers of the mobile communications services.
Note that the device is equipped with a single radio module.
If you are talking on one of the SIM, the second SIM will be
unavailable .
Before you install the SIM - card, make sure that the device is
turned off. If the device is turned on, turn it off, by pressing and
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