Verykool RS75 - Manual (Page 32)

provider.
Can not
dial calls
n Make sure that the number you dialed is
available and the dial key has been pressed.
n Make sure that there is enough money to
make a call.
n Make sure that SIM card is valid.
n Fixed Dial is set or has call barring feature
turned on. Deactivate fixed dial function or
call barring.
Can not
receive
calls
n Make sure that your phone has connected to
network (Check if the network is too busy or
invalid).
n Make sure that there is enough money to
receive the call.
n Make sure that SIM card is valid.
n Check call divert settings and incoming call
barring settings.
The battery
won’t
charge
n Make sure that the battery is inserted
correctly. Securely connect the charger to the
phone.
n Only charge the battery in an environment
where the temperature does not go below
-10 or above 45
℃ ℃ .
n The battery or charge need to be changed.
Can not set
some
functions n The operation is wrong.
n The network providers do not support the
function, or you don’t apply the function.