User's Manual

12
Appendix B: Troubleshooting
Failure
Reason
Can’t switch on
1、 The battery has been run out;
2、 The battery isn’t installed properly.
SIM card error
1、 SIM card is dirty. Clean the SIM card.
2、 Re-install the SIM card.
3、 SIM card is damaged. Please change a new one.
4、 (SIM2 is same)
Weak signal
Check the icon of signal strength, where four strips indicate the strongest
signal and two or less strips indicate weak signal.
(SIM2 is same)
Can’t make calls
(I) You have set to hide your own number, but the network operator
doesn’t support this service.
(II). The ambient has strong interference.
(III). You have enabled call barring.
(IV). You have activated Line 2, but the network operator doesn’t
support this service.
Can’t charge the
battery
(I). The battery may be over discharged and it takes a while to charge
after connected to the charger.
(II) Battery performance has decreased.
Can’t connect to
network
(I). The signal is too weak, or there is radio interference.
(II). Check whether the SIM card is installed properly, whether the
contact is poor or whether the card is damaged? Please contact your network
operator if the SIM card is damaged.
The photos taken are
too dark
(I) The brightness is too low;
(II) The environment is too dark
The photos taken are
blurry
(I) The object is moving;
(II) Your hand shakes when you press the shutter
The photos taken are
distorted
The object is too close
Can’t access service
menu
The SIM card doesn’t support
Appendix C: Abbreviation and explanation
SMS
Short Message Service
EMS
Enhanced Message Service
SIM
Subscriber Identity Module