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Troubleshooting
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To format the file system
Symptoms: The communicator is in a reboot cycle or does not boot up.
First, check that your battery is not empty.
Key combination: Shift-Tab-F
Caution: Formats the file system. All data you have entered will be lost. This
operation will restore your communicator to the state it was in at the time of
purchase.
Remember that backed up data can be restored in all cases.
If these measures do not help, contact your local dealer.
5. Cannot make or receive calls
Make sure that the phone is not off. Close the cover and switch on the phone.
If you get the message INVALID SIM CARD, your SIM cannot be used in the
communicator. Contact you dealer or network operator.
Check the status of your call barrings and diverts, see ”Telephone settings” on
page 65.
The phone may be busy: data or fax is being sent or received, or the
communicator is being used as a fax modem. Wait for the data/fax
transmission to end, or drop the call by pressing the key on the phone
keypad.
6. Call quality is poor
Your location may not allow better call quality. This problem may occur
especially in a moving car or train. Move to a location where the radio signal
reception is better. See ”Facts about cellular data transmission” on page 14.
Reception is usually better above ground level, outdoors and while stationary.
Sometimes even moving the communicator slightly will improve reception.
You can also try using the communicator in the handsfree mode, see
”Handsfree mode” on page 61. Remember to turn the antenna to an upright
position.
7. Cannot divert or bar voice, fax or data calls
You may have not subscribed to the service in question, or it is not supported
by the network, or the message centre number and the number to which you
want to divert your calls may be missing or incorrect.
Fax diverts and barrings are set in the settings of the Fax application. Data
barring is set in the Internet settings. Data calls cannot be diverted.
8. Cannot select a contact
If you cannot select a contact in the Telephone, Fax, SMS or Mail directory, the
contact card does not have a telephone number, fax number, wireless phone
number or an e-mail address. Add the missing information to the contact card
in the Contacts application.