Public bug reported:
Binary package hint: modemmanager
I have an unlocked/unbranded Vodafone K3520 (aka Huawei E169) Broadband
modem. When booting off a v9.04 (i386) live CD it connects to the
Telstra and Vodafone (I'm in Australia) networks work just fine. When
running off v9.10 (AMD64) from my hard drive the Vodafone SIM connects
fine, the Telstra one doesn't. Apart from the SIMs, it is all the same
hardware at the same location. (I think the two networks use different
technology, I'm not sure.)
I did some investigation in to the AT commands when using the Telstra SIM.
With v9.04 all is good:
ATZ E0 V1 X4 &C1 +FCLASS=0
ATZ E0 V1 X4 &C1 +FCLASS=0
OK
AT+CPIN?
+CPIN: READY
OK
ATZ E0 V1 X4 &C1 +FCLASS=0
OK
AT+CFUN=1
OK
AT+CGMM
K3520
OK
AT+CREG?
+CREG: 0,5
OK
AT+COPS?
+COPS: 0,0,"3TELSTRA",2
OK
AT+CGDCONT=1,"IP","telstra.internet"
OK
ATD*99***1#
CONNECT 7200000
With v9.10 it fails:
ATZ E0 V1 X4 &C1 +CMEE=1
ATZ E0 V1 X4 &C1 +CMEE=1
OK
AT+CREG=0
OK
AT+CFUN=1
OK
AT+CPIN?
+CPIN: READY
OK
AT+COPS=0,,
OK
AT+CREG?
+CREG: 0,5
OK
AT+COPS=3,2;+COPS?
+COPS: 0,2,"50506",2
OK
AT+COPS=3,0;+COPS?
+COPS: 0,0,"3TELSTRA",2
OK
AT+CSQ
+CSQ: 12,99
OK
AT+CGDCONT?
+CGDCONT: 1,"IP","telstra.internet","0.0.0.0",0,0
+CGDCONT: 2,"IP","Telstra.wap","0.0.0.0",0,0
+CGDCONT: 3,"IP","telstra.datapack","0.0.0.0",0,0
+CGDCONT: 4,"IP","telstra.pcpack","0.0.0.0",0,0
+CGDCONT: 5,"IP","telstra.internet","0.0.0.0",0,0
+CGDCONT: 6,"IP","telstra.wap","0.0.0.0",0,0
OK
ATD*99***1#
NO CARRIER
AT+CEER
+CEER: No cause information available
Interestingly, entering the same (v9.10) commands manually using CuteCom
connected to /dev/ttyUSB0 connects OK:
ATZ E0 V1 X4 &C1 +CMEE=1
ATZ E0 V1 X4 &C1 +CMEE=1
OK
AT+CREG=0
OK
AT+CFUN=1
OK
AT+CPIN?
+CPIN: READY
OK
AT+COPS=0,,
OK
AT+CREG?
+CREG: 0,5
OK
AT+COPS=3,2;+COPS?
+COPS: 0,2,"50506",2
OK
AT+COPS=3,0;+COPS?
+COPS: 0,0,"3TELSTRA",2
OK
AT+CSQ
+CSQ: 11,99
OK
AT+CGDCONT?
+CGDCONT: 1,"IP","telstra.internet","0.0.0.0",0,0
+CGDCONT: 2,"IP","Telstra.wap","0.0.0.0",0,0
+CGDCONT: 3,"IP","telstra.datapack","0.0.0.0",0,0
+CGDCONT: 4,"IP","telstra.pcpack","0.0.0.0",0,0
+CGDCONT: 5,"IP","telstra.internet","0.0.0.0",0,0
+CGDCONT: 6,"IP","telstra.wap","0.0.0.0",0,0
OK
ATD*99***1#
CONNECT 7200000
Maybe there's a timing issue with the ATD coming too soon after the ATZ? Or
commands coming too soon after the OK for the modem/SIM to handle?
Any help is appreciated.
My system:
$ lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10
$ uname -a
Linux lappy 2.6.31-16-generic #53-Ubuntu SMP Tue Dec 8 04:02:15 UTC 2009 x86_64
GNU/Linux
$ apt-cache policy modemmanager
modemmanager:
Installed: 0.2.git.20091014t233208.16f3e00-0ubuntu1
Candidate: 0.2.git.20091014t233208.16f3e00-0ubuntu1
Version table:
*** 0.2.git.20091014t233208.16f3e00-0ubuntu1 0
500 http://ftp.iinet.net.au karmic/main Packages
100 /var/lib/dpkg/status
** Affects: modemmanager (Ubuntu)
Importance: Undecided
Status: New
--
Broadband modem fails to connect, no carrier.
https://bugs.launchpad.net/bugs/496834
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