Common Fault Diagnosis - Verykool 1211 User Manual

6. Common fault diagnosis

Fault phenomenon
Cannot turn on
Wrong SIM Card
Reception bad
Phone can't dial
Battery can't charge
Unable to connect to the
network
Photographs too dark
Photographs too vague
Photographs have
distortion
possible reasons
The battery is discharged. Charge it with electricity.
SIM card smudgy, clean the SIM card. Reinstall the SIM
card. SIM card has been damaged, replace the SIM card。
Check on the screen of the signal strength indicator, and
this is the number of symbols in this for 5 case said the
strong signal, 2 case said the weak signal
you may set the hide the machine number, but your
network operator does not provide this service;
may have a strong interference environment around
signal;
may you activate the call barring function;
may you activate the line 2, but your network operator
does not provide this service；
may have excessive discharge battery, charger needed to
connect after a period of time to charge;
battery performance have been worse;
signal is too weak, or around the radio interference
SIM card is installed correctly, whether contact
undesirable or SIM card has been damaged? Such as the
SIM card is damaged, please you consultation network
service operators
brightness set low;
environment light around a dark;
Shooting in a state of motion object；
Press the shutter moment cell phone has a slight shaking；
Dark
May be the foreground subject distance lens too close