YAKOYA E68 User Manual - page 11
11
the PUK code provided by the network operator to
launch it again.
Poor
calling
quality
- Please check whether the volume has been adjusted
appropriately.
- The mobile phone is used in the place with poor
signals, such as near a high-rise building or in a
basement, where radio waves cannot effectively reach.
- The mobile phone is used in peak hours, for example,
the time to go to and leave work, and line congestion
makes it impossible to call.
Short standby
time
- The standby time is related to the system settings of
the network, and the mobile phone is possibly in an
area with poor signals. When it fails to receive signals,
the mobile phone will continuously transmit to look for
a base station, thereby consuming a lot of battery
power and leading to a shorter standby time. Please
move to a place with strong signals or shut down the
mobile phone for a moment.
- Replacing a new battery is needed.
SIM card error
- The metal surface of the SIM card is contaminated.
Please clean the metal contact of the SIM card with
clean cloth.
- The SIM card has not been inserted correctly.
- Damaged SIM card. Please contact your network
operator.
Unable to dial
out
- Please confirm whether you have pressed the dial key
after dialing a number.
- Please confirm whether you have paid the telephone
bill.
- Please confirm whether the SIM card is valid.
- Please confirm whether the call barring function has
been activated.
- Please confirm whether the fixed calling function has
been activated.