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43
Failure Analysis
Symptoms
Possible Causes
Solutions
Unable to turn on
the phone
Inadequate battery
capacity
Charge the battery
Poor contact
Reinstall the battery
Automatic
power-off
Seriously poor battery
capacity
Recharge the battery
Inadequate standby
time
Deceasing of battery
performance
Replace the battery
Poor network signal
Turn off the phone as the signal is
poor.
Unable to connect
the network
Poor network signal
Move to other places
Out of the service area
Make sure your phone is in network
service area
Call drop
Poor network signal
Move to other places
Do not ring upon
incoming calls
Set “Silent” or minimum
volume
Ent
er “User Profiles” to set
Non-silent or check the ringing
volume
Prompt to input
PUK
SIM card locked due to
the continuous entering of
wrong PIN code for
three times.
Contact your operator.