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15
“General” mode on
“Meeting” mode on
Missed call
Battery charge level
Unread SMS or MMS
Plugged-in earphones
Computer connection
Troubleshooting
Message
Possible solution
Insert SIM card
Make sure SIM card has been correctly installed.
Input PIN
If the SIM card is secured with the PIN code you have to
enter the PIN when turning the phone on and press
<OK>.
Network fail
In areas where signal or reception is weak, calls may not
be possible. Also receiving calls may not be possible.
Move to another location and try again.
No one can call me The phone has to be on and within GSM network reach.
I cannot hear the
caller./The caller
cannot hear me
The mic. should be close to mouth.
Check if the built-in mic. is not covered.
When a headset is un use, check if it has been connected
correctly.
Check if the built-
in speaker isn’t covered.
Poor sound quality
while on the phone. Make sure that the speaker and mic. are not covered.
The connection cannot
be established
Check if the typed-in phone number is correct.
Check if the phone number entered to the [Phonebook]
is correct.
Enter the correct phone number if necessary.
If the problem persists, contact service center.
5. Proper phone maintenance.
Proper use of the battery
Battery in this device can be charged with a charger. If the battery level is low, charge
it. To prolong battery life, let it discharge beneath 20% of the battery capacity before
connecting the charger and charge it up to 100%. If not used, unplug the charger from
the phone and power grid. Overcharging or leaving in a too low/too high temperature
or within magnetic field may shorten battery life cycle. The temperature of the battery
has an impact on its charging cycle. Cool the battery or raise its temperature so that
it is similar to the room temperature (approx. 20°C/68°F). If the battery temperature
exceeds 40°C/104°F the battery must not be charged! Use the battery only according
to its intended purpose. Do not use a damaged battery. Do not throw the battery into
