19
Failure analysis
Symptoms Possible Causes Solutions
Unable to turn the phone on
Inadequate
attery capacity Charge the battery
Poor contac
Reinstall the battery
Automatic
power-off
Seriously poor battery capacity Recharge the battery
Inadequate standby time
Decreasing
attery performance Replace the battery
Poor network signal Turn off the phone if the signal is poo
Unable to connect to the
network
Poor network signal Move to other areas
Out of the service area
Make sure your phone is in a network
service area
Call drop Poor network signal Move to other areas
Does not ring upon inco
ing
calls
Set “Silent” or minimum volume
Enter “Profiles” to se
General
or check the ringer volume
Prompt to input PUK
SIM card locked due to entering the wrong PIN
code three times
Contact your network operator
Unable to view some photos
Your phone doesn’t support the photo format, or
the size of the photo is too big
Change the photo format or size
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