User's Manual

Troubleshooting
41
My device cannot connect to a network or “No service” is
displayed
Try connecting in another location.
Verify the network coverage with your operator.
Check with your operator that your SIM card is valid.
Try selecting the available network(s) manually.
Try connecting at a later time if the network is overloaded.
My device cannot connect to the Internet
Check that the IMEI number (press *#06#) is the same as the one
printed on your warranty card or box.
Make sure that the internet access service of your SIM card is
available.
Check your device's Internet connecting settings.
Make sure you are in a place with network coverage.
Try connecting at a later time or another location.
Invalid SIM card
Make sure the SIM card has been correctly inserted (see
"Inserting or removing the SIM card").
Make sure the chip on your SIM card is not damaged or scratched.
Make sure the service of your SIM card is available.
Unable to make outgoing calls
Make sure you have dialed a valid number and have touched .
For international calls, check the country and area codes.
Make sure your device is connected to a network, and the network
is not overloaded or unavailable.
Check your subscription status with your operator (credit, SIM card
valid, etc.).
Make sure you have not barred outgoing calls.
Make sure that your device is not in flight mode.
Unable to receive incoming calls
Make sure your device is switched on and connected to a network
(check for overloaded or unavailable network).
Check your subscription status with your operator (credit, SIM card
valid, etc.).
Make sure you have not forwarded incoming calls.
Make sure that you have not barred certain calls.
Make sure that your device is not in flight mode.
The caller’s name/number does not appear when a call is
received
Check that you have subscribed to this service with your operator.
Your caller has concealed his/her name or number.
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