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32
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 possible Dialling error.
New SIM fitted.
Charge limit reached.
Troubleshooting
Possible Corrective Measures
Charge battery.
Check charging indication on display.
Clean contacts carefully.
Repeat switching on and off.
Continue to charge device. The charge icon appears
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 service 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 service pro-
vider.
Enter super PIN (PUK) supplied with your SIM as in-
structed. If your super PIN or PIN are lost, contact
your service provider.
Move to a higher location, or to a window or open
space.
Check service provider coverage map.
Check network information for the device.
Contact your service provider.
Try selecting manually, or try other network
(¼ p. 30).
Reconnection, or connection to another service pro-
vider is automatic; AutoNetwork (¼ p. 30).
Switching off and on may accelerate this.
Check the telephone number
(correct international and area code).
Check for new restrictions.
Contact your network provider.
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