User's Manual

12
  UIM card is damaged, contact your network service
provider.
Unable to connect to the network
  Weak signal to a strong signal to retry.
  Beyond the network coverage area of the network service
provider.
  UIM card is invalid, contact your network provider.
Number call can not be set aside
  Please confirm whether pressing the dial key after dialing.
  Please confirm whether arrears banned call.
  Please make sure the UIM is valid.
  Please confirm whether the call barring function.
Call quality is poor
  Please check whether to adjust the volume inappropriate.
  Use of mobile phones in poor reception areas, such as
high-rise near or basement, radio waves can not be effectively
communicated.
  The use of mobile phones in call-intensive period, as
indicated in the commuting time line congestion caused not
call.
Contacts can not call you
  Make sure the phone is switched on and connected to the
network.
  Please confirm whether due to arrears incoming banned.
  Please confirm the UIM card is valid.
Contacts can not hear you
  Make sure that the microphone is turned on.
  Keep the phone the lower part of the microphone close to
your mouth.
Standby time is short
  Standby time and the network system is set, and may be
in a poor reception region. When no signal is received, the
phone will continue to launch in order to find the base station,
consume a lot of battery power, resulting in shorter standby