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My phone can't charge properly
Make sure that you are using the TCL charger that comes with the phone.
Make sure that your battery is not completely discharged; if the battery power
has been empty 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
40°C (104°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 operator.
Check with your operator that your SIM card is valid.
Try connecting at a later time if the network is overloaded.
My phone can't connect to the internet
Make sure that the internet access service of your SIM card is available.
Check your phone's internet connection settings.
Make sure that you are in a place with network coverage.
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 is available.
My phone can't make outgoing calls
Make sure that you have dialled a valid number and have touched .
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 operator (credit, SIM card valid, etc.).
Make sure that you have not barred outgoing calls.
Make sure that your phone is not in aeroplane mode.
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Others manual(s) of TCL 20L - T774H

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TCL 20L - T774H User Manual - French - 77 pages

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