Download Cherry C8 User guide

7)
SIM Error

Make sure that SIM card is properly inserted in its intended
spot.
 Make sure that the chip in the SIM card is not damaged or the
SIM card is not scratched.
 Check the coverage of your local network service provider if
you appear to be out of coverage or have weak signal. You may
opt to move near a window.
8)
Cannot make calls

Make sure that the number you dialed is correct and the dial
key has been pressed.
 Use the full national area code.
 When abroad, use country-specific international access codes
9)
Cannot receive calls



Make sure that your phone is connected to a network (Check if
the network is busy or invalid).
Check the Call Diverts settings.
Check the Incoming Call Barring settings.
-28-