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Appendix
Resetting the device
If these methods do not solve your problem, perform a factory data reset.
Open Settings and tap General management → Reset → Factory data reset → Reset →
Delete all. Before performing the factory data reset, remember to make backup copies
of all important data stored in the device.
Calls are not connected
Ensure that you have accessed the right cellular network.
•
Ensure that you have not set call barring for the phone number you are dialling.
•
Ensure that you have not set call barring for the incoming phone number.
•
Others cannot hear you speaking on a call
Ensure that you are not covering the built-in microphone.
•
Ensure that the microphone is close to your mouth.
•
If you are using headphones, ensure that they are properly connected.
•
Sound echoes during a call
Adjust the volume by pressing the Volume button or move to another area.
A cellular network or the internet is often disconnected or audio
quality is poor
Ensure that you are not blocking the device's internal antenna.
•
When you are in areas with weak signals or poor reception, you may lose reception.
•
You may have connectivity problems because of issues with the carrier's base
station. Move to another area and try again.
When using the device while moving, wireless network services may be disabled
•
because of issues with the carrier's network.
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