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This chapter lists some problems you might encounter while using your phone. Some
problems require you to call your service provider, but most are easy to correct yourself.
Message Possible causes Possible Corrective Measures
SIM error
There is no SIM card in
the phone or it is inserted
incorrectly.
Make sure that the SIM card is correctly
inserted.
No network
connection/
Losing network
Weak Signal outside of
WCDMA network area.
Operator applied new
services
Move towards a window or into an open area.
Check the network operator coverage map.
Check if the SIM card is older than 6~12
months.
If so, change your SIM at your network
provider's nearest branch.
Codes do not
match
To change a security code,
you will need to confirm
the new code by entering
it again.
The two codes you have
entered do not match.
The default code is [0000]. If you forget the
code, contact your service provider.
Any application
cannot be set
Not supported by service
provider or registration
required
Contact your service provider.
Calls not available
Dialing error
New SIM card inserted
Prepaid Charge limit
reached
New network not authorised.
Check for new restrictions.
Contact service provider or reset limit with
PIN 2.
Phone cannot be
switched on
On/Off key pressed long
enough
Battery is not charged
Battery contacts are dirty
Press the On/Off key down for at least two
seconds.
Keep charger attached for longer. Clean the
contacts.
Take out the battery and insert again.
Troubleshooting