User Manual

48
Charge the battery when
ambient temperature is lower
than -10 or above 55 .℃ ℃
Change the
environment.
Poor connection. Check whether the plug
is properly connected.
Failed to
add
contacts to
phonebook
The storage space of
phonebook is used up.
Delete some contacts
from the phonebook.
Failed to set
up some
features
Your network service
provider does not provide the
services, or you haven’t
subscribed them.
Contact your network
service provider.