temperature and moisture will damage circuit board.
● Do not disassemble device, non-professionals will damage the device with improper handling.
● Do not throw, tap, shake the device. It may damage the main board.
● Do not clean the mobile with detergents. Use rag to wipe it slowly with soap water.
● Do not paint any color for the device. It may affect the mobile working in normal.
● If the device get wet, please switch off immediately and take out the battery, keep it for 24
hours, then use after it gets dry.
● It is better turn down the volume and screen backlight for lasting battery standby time.
● Do not put metal parts (except specific charger interface and cable interface) with device
charger interface, avoid short circuit.
8.3
Troubleshooting
If there is trouble during using the phone, please read the solution as follow or contact service
providers.
Common
problems
Causes
Solutions
Bad reception
Radio waves cannot communicate
with device when it is used in a bad
signal area, like basement or space
besides tall building.
Move to a place with good signal.
Cannot talk in Call-intensive period.
Avoid call-intensive period
Phone cannot
switch on
No power
Change a new battery
Calls cannot get
through
Have not setup the family number
for that key.
Setup specific number for each key.
Device cannot
connect to the
network
SIM card installed incorrectly
Check the SIM card
The sheet mental of SIM card is
dusty
Wipe with a clean wiper.
Invalid SIM card
Contact your internet service provider
Out of GSM service area
Move back to the GSM service
covered area.
Weak signal
Try again in a strong signal area
Device cannot
be charged
Voltage is out of charging range of
charger.
Change to the proper voltage
Use non-standard charger
Use charger that come with the
package
Poor contact
Check if the plug is in.
Cannot check
location
information
SIM card does not support GPRS
functions
Please contact SIM card sell service to
activate GPRS functions
Reply “not receiving data, please
try again” all the time
Please contact with your distributors
or selling services
