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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.

TCL IONz User Manual

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