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7 In some cases you must confirm the action by
pressing a command button.
After the reset, the communicator will reboot
and start normally.
1) Check the file system
Key combination: Shift-ESC-(left arrow)
Symptoms: The Memory application (in
the System main view) shows too much
(over 2 megabytes) or too little memory
(even if you have just deleted some docu-
ments), or the communicator interface ap-
plications crash when opening a
document.
Caution: If there are problems in the file
system, the corrupted files will be re-
moved.
If there are no problems, this operation
does not affect any documents or settings.
2) Delete temporary files
Key combination: Shift-ESC-(right arrow)
Symptoms: The communicator interface is
in a reboot cycle or a note saying that an
.ini file is corrupted is displayed.
Caution: All temporary files are removed.
The Document outbox is cleared, default
application settings are restored (for ex-
ample, the SMS message centre number,
Internet access point and remote mailbox
settings are lost).
Stored documents are not affected.
3) Format file system
Key combination: Shift-ESC-F
Symptoms: The communicator interface is
in a reboot cycle or does not boot up.
Caution: Formats the file system. All data
you have entered will be lost. This operation
will restore your communicator in the same
state it was in at the time of purchase.
Remember that backed up data can be re-
stored in all cases. If these measures do
not help, contact your local dealer.
5. Calls cannot be made or received
The phone interface is off. Close the cover and
switch the phone interface on.
If you get the message INVALID SIM CARD,
your SIM cannot be used in the communica-
tor. Contact you dealer or network operator.
Check the status of your call barrings and di-
verts, see chapter 4 "Telephone: Telephone
settings" on page 4-6.
The phone interface is already busy (data or fax
being sent or received, the communicator is
used as a fax modem). Wait for the data/fax
transmission to end or drop the call (by pressing
the key on the phone interface keyboard).
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 radio
signal reception is better. See chapter 16 "Im-
portant safety information: Facts about cellu-
lar data transmission" on page 16-3.
Reception is usually better above ground lev-
el, outdoors and while stationary. Sometimes
even moving the mobile phone slightly will
improve reception. You can also try using the
communicator in the handsfree mode with
the communicator interface’s Telephone ap-
plication (see chapter 4 "Telephone: Audio
control" on page 4-1). Remember to turn the
antenna to an upright position.
7. Calls, faxes or data cannot be diverted or
barred
The service in question may not be subscribed
to, or is not supported by the network, or the
message centre number and voice mailbox
number (required for call diverting) may be
missing or incorrect.
Fax diverts and barrings are set in the Fax ap-
plication’s settings. Data barring is set in the
Internet main settings (data calls cannot be
diverted).
8. Cannot access numbers stored on the SIM
Use the phone interface’s Menu 8 3 2 to copy
the SIM card entries into the Contacts directo-
ry. See chapter 13 "Phone interface: Menus -
Memory functions (Menu 8)" on page 13-13.