Unable to boot
up
Ensure you have pressed and held the Start
key for at least 1 second;
Check the battery for proper connection.
Dissemble and reinstall the battery, and then
try to restart the phone
；
Check whether the battery power has been
used up. Please re-charge your battery.
Access to
network failed
For weak signal, move to another place and
retry;
Out of reach of the network service provider;
USIM card is inactive. Contact your network
service provider;
Display
information
during startup
Check the SIM card to see if the SIM card is
correctly installed;
Automatic lock function is checked. Enter the
phone lock password before use;
The PIN code is displayed. The PIN function
has been checked. Enter the PIN code each
time when the phone is started up; (For the
first use, enter the PIN code provided with the
SIM card)
Enter PUK code: If wrong PIN codes are
entered for three times consecutively, the
mobile phone will be locked. In this case,
input the PUK code provided by the network
service provider.
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
