![Alcatel HERO 8020D Quick Start Manual Download Page 42](http://html1.mh-extra.com/html/alcatel/hero-8020d/hero-8020d_quick-start-manual_2890582042.webp)
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Verify the network coverage with your operator.
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Check with your operator that your SIM card is valid.
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Try selecting the available network(s) manually
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Try connecting at a later time if the network is overloaded.
My phone cannot connect to the Internet
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Check that the IMEI number (press *#06#) is the same as the one
printed on your warranty card or box.
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Make sure that the internet access service of your SIM card is available.
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Check your phone's Internet connecting settings.
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Make sure you are in a place with network coverage.
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Try connecting at a later time or another location.
Invalid SIM card
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Make sure the SIM card has been correctly inserted (see “Inserting or
removing the SIM card”).
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Make sure the chip on your SIM card is not damaged or scratched.
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Make sure the service of your SIM card is available.
Unable to make outgoing calls
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Make sure you have dialled a valid number and have touched Call.
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For international calls, check the country and area codes.
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Make sure your phone is connected to a network, and the network is
not overloaded or unavailable.
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Check your subscription status with your operator (credit, SIM card
valid, etc.).
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Make sure you have not barred outgoing calls.
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Make sure that your phone is not in airplane mode.
Unable to receive incoming calls
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Make sure your phone is switched on and connected to a network
(check for overloaded or unavailable network).
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Check your subscription status with your operator (credit, SIM card
valid, etc.).
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Make sure you have not forwarded incoming calls.
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Make sure that you have not barred certain calls.
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Make sure that your phone is not in airplane mode.
The caller’s name/number does not appear when a call is
received
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Check that you have subscribed to this service with your operator.
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Your caller has concealed his/her name or number.
I cannot find my contacts
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Make sure your SIM card is not broken.
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Make sure your SIM card is inserted properly.
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Import all contacts stored in SIM card to phone.
The sound quality of the calls is poor
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You can adjust the volume during a call by pressing the Volume Up/
Down key.