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6. Common Problems & Troubleshooting
Before contacting the after-sales service provider, conduct the
following simple checks and this may save your unnecessary time and
expense on repair.
Common
Problems
Unable to
start the
mobile
phone
Unable to
connect
network
Display
messages at
start
Cause & Troubleshooting
-
Check whether you hold the start key for at least 3
seconds.
-
Check whether the battery is in poor state. Please
remove the battery, install it again, and try to
restart it.
-
Check whether the battery has run out of power,
and if yes, please charge the battery.
-
Weak signals. Please retry in a place with strong
signals.
-
Beyond the network coverage of your network
operator.
-
Invalid SIM card. Please contact your network
operator.
-
Check whether the SIM card has been correctly
inserted.
-
Locked. You have selected the automatic locking
function, and entering the mobile phone password
before using it.
-
Enter PIN. You have selected the option of
entering PIN for each start of the mobile phone,
and so you must enter the PIN code (When the
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