Siemens GSM 900 - Manual (Page 97)

31.5.02 07-S46 i 37Am Engl, A31008-H5450-A5-1-4A19
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Troubleshooting
Press * # 9 9 9 9 #
i
to restore all settings to the factory default (in GSM mode) or to display
the hardware and software versions for service information (in TDMA mode).
Further information can be found on the Internet at:
http://www.icm.siemens.com
Problem Possible causes Possible solutions
Message cannot
be sent. Some service providers do not support
this service. Check with your service provider.
Phone number of the service center is
not set or is wrong. Enter or modify service center phone
number (p. 40).
SIM card contract does not support
this service. Contact your service provider.
Service center overloaded. Retry message.
Addressee does not have a
compatible phone. Verify that addressee has a
compatible phone.
PIN error. Three incorrect entries. Enter the MASTER PIN (PUK) provided
with the SIM according to the instructions.
If MASTER PIN or PIN has been lost,
contact your service provider.
Phone code error. Three incorrect entries. Contact Siemens Service (p. 93).
Service provider
code error. No authorization for this service. Contact your service provider.
Too few/too many
menu items. Functions may have been added or
removed by your service provider via
the SIM card. Contact your service provider.
No fax possible. Incorrect settings in the PC. Check settings (p. 87).
No authorization for this service. Contact your service provider.
Wrong infrared driver in the PC. Install latest infrared driver.
Mode set to “TDMA Only.” Set “GSM Only” (p. 80)
Damage
Severe shock. Remove battery and SIM and insert them again. Do not dismantle the phone.