103
11 Troubleshooting
Caution
If there is any problem when you use the mobile phone, try to implement
troubleshooting by following the contents of this section. If it fails to be solved,
contact your network operator or contractual maintenance center or manufacturer by
the hotline.
Problem
Possible
Reason
Solution
Press the power button
too shortly
Press the power button, and keep for about 3
seconds.
The power of battery is
depleted.
Plug into the charger to charge. If the battery is
fully discharged, the charge indicator will not
appear after the charger is plugged in and the
mobile phone can not be power on immediately.
It is necessary to wait for about 10min until the
charge indicator appears.
Cannot power on
Poor battery contact
Take out the battery, clean the dirt in the contact
point and reinstall it.
The battery is fully
discharged, and needs
to be reactivated.
Plug in the charger and wait for about 10
minutes until the charge indicator appears. Then
go on charging till the battery is full.
Cannot charge
Poor battery contact
Take out the battery, clean the dirt in the contact
point and reinstall it.
Without SIM card
Insert a valid SIM card.
Poor SIM card contact
Take out the SIM card, clean the dirt in the
contact point, and then reinstall it again.
Cannot make a
call.
Use an outdated 5V SIM
card.
Only an up-to-date 3V SIM card can be used.
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