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• Make sure that your battery is not completely discharged; if the
battery power has been discharged for a long time, it may take
around 20 minutes to display the battery charging indicator on the
screen.
• Make sure that charging is carried out under normal conditions (0°C
(32°F) to 45°C (113°F).
• When abroad, check that the voltage input is compatible.
My phone can't connect to a network or "No service" is displayed
• Try connecting to the network by moving to another physical
location.
• Verify the network coverage with your carrier in your current area.
• Check with your carrier that your SIM card is valid.
• Make sure your phone’s setting is not in airplane mode.
My phone can't connect to the internet
• Make sure that Cellular Data internet service is available in your
wireless service plan.
• Make sure that you are in a place with network coverage for cellular
data.
• Try connecting at a later time or another location.
Invalid SIM card
• Make sure that the SIM card has been correctly inserted.
• Make sure that the chip on your SIM card is not damaged.
• Make sure that the service of your SIM card matches the network
you’re on.
My phone can't make outgoing calls
• Make sure that you have dialed a valid number and have pressed
on your phone.
• For international calls, check the country and area codes.
• Make sure that your phone is connected to a network, and the
network is not overloaded or unavailable.
• Check your subscription status with your carrier.