charger interface, avoid short circuit.
9.3 Troubleshooting
If there is trouble during using the phone, please read the solution as follow or contact
service providers.
Common
problems
Causes
Solution
Bad reception
Radio waves can not
communicate with device when it
be used in a bad signal area, like
basement or space beside tall
building.
Change to a place with good
signal.
Can not talk in Call-intensive
period.
Avoid call-intensive period
Phone can not
switch on
No power
Change a new battery
Calls can not go
through
Have not setup the specific
number for that key.
Setup specific number for each
key.
Phone can not
connect to the
network
SIM card installed wrong
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
Phone can not
charge
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.
GPS is not
locating
Keep the phone indoor
Locating in open space outdoor.
Weak GPS signal
Keep the upside of the phone face
to sky
There is metal stuff covered
the phone.
Move away the metal stuff.
Can not check
location
information
SIM card can not support GPRS
functions
Please contact SIM card sell
service to active GPRS functions
Reply “not receiving data, please
try again” all the time
Please contact with your
distributors or selling services
Can not check because not
specific numbers
Please tight your phone number to
specific number
