User's Manual
Poor voice quality
Please check whether the volume control is suitable;
When the phone is used in places with poor telecommunications,
such as high rises or basement, the radio wave cannot be
transmitted efficiently;
When you use the phone in the rush hour of calls, line congestion will
disable calls.
Shorter standby time
The standby time is associated with the network system setup. In this
case, you are possibly in place with poor communication. When the
signal is not available, the phone will continue to search for the base
station. This will consume a lot of battery power, making standby time
much shorter. To continue to use, move to a place with strong signal,
or shut down the phone temporarily
Replace the battery with a new battery;
SIM card error
If the metal surface of the SIM card is dirty, clean the metal contact
with a clean piece of cloth;
SIM card has not been properly installed;
If SIM card is damaged, contact your network service provider.
Unable to make calls
Check whether your calls have been barred due to insufficient mobile
phone fee;
Check whether the SIM card is effective;
Check whether the call barring function has bee Check whether the
Dial key is depressed after the number is inputted;
n set;
Check whether the fixed dialing function has been set;