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Problem
Possible Cause
Unable to switch
Empty battery.
on phone
Battery contacts dirty.
No
Battery deeply discharged.
charge icon
Battery defective.
Contact problem.
Charge icon
Temperature exceeds
is flashing
0 °C to + 45 °C range.
SIM error
SIM contacts dirty.
Damaged SIM card.
SIM card not correctly orientated.
Old SIM card.
PIN error
3 incorrect inputs.
No connection to
Weak signal.
network
Outside GSM network.
SIM not valid.
New network not authorized.
Phone loses net-
Weak signal.
work
Calls not possi-
Dialling error.
ble
New SIM fitted.
Charge limit reached.
Troubleshooting
Possible Corrective Measures
Charge battery. Check charging indication on dis-
play.
Clean contacts.
Repeat switching on and off.
Continue to charge device. The charge icon ap-
pears after max. 2 hours.
Replace battery. After several years' average use a
gradual decline may be expected.
Check power supply and connection to telephone.
Ensure correct temperature, allow time, then re-
charge.
Clean SIM contacts with a dry cloth.
Make visual check.
Return SIM card to your network provider.
Ensure SIM is correctly orientated.
Only 3 volt SIM cards may be used. If you are using
a 5 volt SIM card, please contact your network pro-
vider.
Enter MASTER PIN (PUK), supplied with your SIM
as instructed. If your MASTER PIN or PIN are lost,
contact your network provider.
Move to a higher location, or to a window or open
space.
Check network provider coverage map.
Check network information for the device.
Contact your network provider.
Try selecting manually, or try other network
(¼ p. 25).
Reconnection, or connection to another network pro-
vider is automatic; AutoNetwork(¼ p. 25). Switch-
ing off and on may accelerate this.
Use the correct national and area code.
Check for new restrictions.
Contact your network provider.
27
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