18
•
Try connecting at a later time or another location
Invalid SIM card
•
Make sure the SIM card has been correctly inserted
•
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 press
key
•
For international calls, check the country and area codes
•
Make sure your phone 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 phone is not in airplane mode
Unable to receive incoming calls
•
Make sure your phone 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 phone is not in airplane 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
I cannot find my contacts
•
Make sure your SIM card is not broken
•
Make sure your SIM card is inserted properly
•
Import all contacts stored in SIM card to phone
