Fastrack Supreme User Guide
Troubleshooting
confidential ©
Page: 48 / 77
Table 13: Solutions for "NO CARRIER" message
If the Supreme
returns…
Then ask…
Action…
Is the received signal strong enough?
Refer to section 5.5 to verify the
strength of the received signal.
Is the FASTRACK Supreme registered on
the network?
Refer to section 5.9 to verify the
registration.
Is the antenna properly connected?
Refer to section 8.2.7.3 for antenna
requirements.
"
NO CARRIER
"
Is the band selection correction?
Refer to Section 7.2 for band switch
"
NO CARRIER
" (when
trying to issue a voice
communication)
Is the semicolon (;) entered immediately
after the phone number in the AT
command?
Ensure that the semicolon (;) is
entered immediately after the phone
number in the AT command.
e.g.
ATD######;
Is the SIM card configured for data / fax
calls?
Configure the SIM card for data / fax
calls (Ask your network provider if
necessary).
Is the selected bearer type supported by the
called party?
Ensure that the selected bearer type
is supported by the called party.
"
NO CARRIER
" (when
trying to issue a data
communication)
Is the selected bearer type supported by the
network?
Ensure that the selected bearer type
is supported by the network.
If no success, try bearer selection
type by AT command:
AT+CBST=0,0,3
If the FASTRACK Supreme returns a "
NO CARRIER"
message, you may have the
extended error code
by
using AT command
AT+CEER
. Refer to the table below for interpretation of
extended error code
.
