SENDO SND251, Manual

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“Blocked” is displayed
on my handset The NCK code has been
entered incorrectly 10 times and
the handset has been security
disabled Return the handset to your service operator or to an
authorized Sendo service center for resetting.
A key on the keypad is
not working The keypad is not seated
correctly after removing and
replacing the telephone’s
plastic cover Remove the telephone’s plastic cover and re-seat
the keypad correctly.
Poor display Low temperature Move to a warmer place and let the phone warm up.
Can’t connect to
network Weak signal Move into an area of better coverage. If you are in a
building, move towards a window.
Invalid SIM card Contact your service provider.
Network not allowed Try reselecting the network. Switch off and then back
on.
Can’t make/receive
calls Weak signal Check that the service provider name is displayed on
the screen. If not, try to reconnect to the network.
Phone is switched off Press
d
for a few seconds.
Check the number Use the full area code and country code in the
number.
Call key not pressed After dialing the number you must press
g
,
Call
.
Network is busy If you hear rapid beeps, then the network is busy.
Hang up and try again.
Call barring or fixed dialing is
activated Check the fixed dialing settings. Otherwise check the
call barring settings with your service provider.
Not registered with service
provider After purchasing your phone, you may need to call
your service provider to activate the line.
No credit left on your prepaid
card Recharge your credit.
Low earpiece volume Low setting Press
:
when you are in a call to increase the
volume.
Low ringer melody Low setting Go into the
Sounds
menu, select
Volume
and
increase the setting.
Problem Possible cause Possible corrective action