Blu VIVO 6 User Manual page 63

 Verify if you have active service with your service provider.
Contact your local network service provider and verify if you are within its network coverage

area.
The phone displays a SIM Error
 Make sure the SIM is properly inserted and in its intended slot.
Make sure that the SIM card is not damaged or scratched.

The PIN code was entered incorrectly three times
 The SIM card will lock and you will need to enter the PUK code (PIN Unlock Code). Please
contact your local service provider to obtain the PUK.
I cannot make calls
 Make sure that the number you dialed is correct and the dial key has been pressed.
 Use the full national area code when dialing out of your area or when abroad, use country-
specific international access codes.
I cannot receive calls
 Make sure that your phone is connected to a network.
The caller ID does not display on incoming calls
Contact your local network service provider and verify you have the caller ID feature enabled

on your account or verify if the caller may have blocked his number from appearing.
The caller cannot leave a voicemail message
 Contact your local network service provider and verify if the voicemail service is active on your
account or check if the network is busy.
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