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My phone cannot charge properly
Make sure that your battery is not completely discharged; if the battery
power is empty for a long time, it may take around 20 minutes to
display the battery charger indicator on the screen.
Make sure charging is carried out under normal conditions (0°C
to+40°C).
When abroad, check that the voltage input is compatible.
My phone 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 (see ―11.1.8 Mobile
networks‖)
Try connecting at a later time if the network is overloaded.
My phone 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 phone'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.
