8. Troubleshooting
Please refer to the list below if you encounter any problems when using your
phone. If you tried but the problem has not been solved, contact a qualified
Lenovo dealer or your local maintenance provider immediately.
Your display prompts Enter PIN Code:
Enter the valid
PIN
code for your
SIM
card. If you do not know this code,
contact your network service operator immediately.
Your display prompts Enter PUK Code:
If you enter the
PIN
code incorrectly three times in a row, your
SIM
card will
be locked. In this case, you have to enter the
PUK
code to unlock your
SIM
card. Please contact your network service operator immediately.
Your phone prompts Insert SIM card:
Make sure that your
SIM
card is correctly installed. Check whether your
SIM
card works normally. This message may indicate that your
SIM
card is
defective or damaged. In this case, contact your network service operator.
Your phone prompts Out of Service Area or Network Failure:
Check your signal strength indicator. If the indicator shows no signal, you
may be in a basement or a building corner not covered by network. Move to
another location where the signal is strong enough. There is another
possibility: you may be in an area not covered by network. You may ask your
network service operator to inform you of the network coverage.
The sound is of poor quality, or there is echo or noise, which makes
calling difficult:
Hang up the call, and dial again. Your network service operator may provide
you with a better link when you retry.
Standby Time Drops:
If the signal is weak, your mobile phone has to search for the signal for a
longer time. This is a possible cause. If you do not want to answer calls,
power off your phone temporarily. Or, your battery has been used for a long
time and has worn out. In this case, you have to buy a new battery.
Your phone cannot be powered on:
Check your battery charge level. If necessary, recharge your battery. You
