User's Manual
21
may be full
• Contact your network operator to check service availability
and check MMS parameters
• Consult the operator to verify the server center number or your
MMS profile
• The server center may be too busy, please try again later
SIM card PIN lock
• Contact your network operator to obtain the PUK code (Personal
Unblocking Key)
Unable to connect your phone to your computer
• Check whether you clicked in the settings \ Developer Options
\ USB Debugging check box
• Make sure to use the correct cable box wire Can not download
new files
• Check if your phone has enough free space for you to download
• Select the SD card to store your downloaded files
• Consult your network operator to check for conditions Other
Bluetooth devices can not detect your phone
• Ensure that Bluetooth is turned on and your phone is visible
to other users
• ensure that the two phones within the detection range of the
Bluetooth
How to extend mobile phone battery life
• Ensure that your phone is fully charged (at least 3 hours)
• After a partial charge, the battery level indicator may be
inaccurate. Please wait for 20 minutes after removing the
charger to obtain an exact indication
• Depending on the case turn on the backlight
• try to extend the e-mail automatically query interval
• Depending on the requirement to manually update news, weather
information, or to extend automatic update interval
• Close unused for a long time back-office applications
• Turn off not using Bluetooth, WLAN or GPS functionPhone calls
in the long run games, the Internet or perform other complex
applications
Fever after order
• Mobile CPU processing fever is a normal phenomenon of too much
data. Stop the operation can make the phone returns to normal
temperature.










