TCL 20 Pro 5G, Руководство пользователя, Страница: 70 / 78

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My phone can't receive incoming calls
• Make sure that your phone is switched on and connected to a network (check for
overloaded or unavailable network).
• Check your subscription status with your operator (credit, SIM card valid, etc.).
• Make sure that you have not forwarded incoming calls.
• Make sure that you have not barred certain calls.
• Make sure that your phone is not in aeroplane mode.
The caller’s name/number doesn't appear when a call is received
• Check that you have subscribed to this service with your operator.
• Your caller may have concealed his name or number.
I can't find my contacts
• Make sure that your SIM card is not broken.
• Make sure that your SIM card is inserted properly.
The sound quality of the calls is poor
• Adjust the volume during a call by pressing the
Volume
key.
• Check the network strength. Move to a location with stronger signal strength.
• Make sure that the receiver, connector and speaker on your phone are clean.
I can't use the features described in the manual
• Check with your operator to make sure that your subscription includes this
service.
• Make sure that this feature doesn't require a TCL accessory.
When I select a number from my contacts, the number can't be dialled
• Make sure that you have correctly recorded the number in your contacts.
• Make sure that you have selected the country code when calling an international
number.
I can't add a contact
• Make sure that your SIM card contacts are not full; delete some contacts or save
the contacts to the phone.
My callers can't leave messages on my voicemail
• Contact your network operator to check service availability.