GSM and RIL: network registration problem

[Adrien]

Hi,

I have been trying for some time to use a GSM modem on android but
every time i solve a problem, another one appears. ***sighs***

I am able to boot android with the modem attached, the RIL starts
talking to it and i have several things happening: the modem can
detect all the operator emitting nearby, and it can apparently connect
to one (SFR in France). Unfortunately, the RIL doesn't handle the
connection very well (see log below). Apparently, the command AT
+COPS=3,0;+COPS?;+COPS=3,1;+COPS?;+COPS=3,2;+COPS? doesn't work.

It may be related to my sim card program (only data, those sim are
used mainly for tablets, or 3G usb dongles). As you can see the modem
is registered on the network, but when using the above command, it
results in an CME ERROR 4 (operation not supported).

The full log is here: http://pastebin.com/eKpCCKkG

D/AT ( 881): AT> AT+COPS?
D/RILJ ( 1040): [0064]< REGISTRATION_STATE {1, 1901, 2408}
D/AT ( 881): AT< +COPS: 0,0,"F SFR"
D/AT ( 881): AT< OK
D/RILJ ( 1040): [0065]< QUERY_NETWORK_SELECTION_MODE {0}
E/GSM ( 1040): Wrong network type: 0
E/GSM ( 1040): Wrong network type: 0
D/GSM ( 1040): Poll ServiceState done: oldSS=[0 home null null
null Unknown CSS not supported -1 -1RoamInd: -1DefRoamInd:
-1EmergOnly: false] newSS=[0 home null null null Unknown CSS not
supported -1 -1RoamInd: -1DefRoamInd: -1EmergOnly: false] oldGprs=1
newGprs=1 oldType=unknown newType=unknown
D/RILJ ( 1040): [0066]> SIGNAL_STRENGTH
D/RIL ( 881): onRequest: SIGNAL_STRENGTH
D/AT ( 881): AT> AT+CSQ
D/AT ( 881): AT< +CSQ: 20,99
D/AT ( 881): AT< OK
D/RILJ ( 1040): [0066]< SIGNAL_STRENGTH {20, 99, 0, 0, 0, 0, 0}
D/AT ( 881): AT< +CREG: 1,"1901","7215"
I/RIL ( 881): !!!!!!!!!!!!!!!!!!!!!! reference-ril.c
onUnsolicited !!!!!!!!!!!!!!!!!!!!!!1
D/RILJ ( 1040): [UNSL]< UNSOL_RESPONSE_NETWORK_STATE_CHANGED
D/RILJ ( 1040): [0067]> OPERATOR
D/RIL ( 881): onRequest: OPERATOR
D/AT ( 881): AT> AT+COPS=3,0;+COPS?;+COPS=3,1;+COPS?;
+COPS=3,2;+COPS?
D/RILJ ( 1040): [0068]> GPRS_REGISTRATION_STATE
D/RILJ ( 1040): [0069]> REGISTRATION_STATE
D/RILJ ( 1040): [0070]> QUERY_NETWORK_SELECTION_MODE
D/AT ( 881): AT< +COPS: 0,0,"F SFR"
D/AT ( 881): AT< +CME ERROR: 4
E/RIL ( 881): requestOperator must not return error when radio is
on
D/RIL ( 881): onRequest: GPRS_REGISTRATION_STATE
D/RILJ ( 1040): [0067]< OPERATOR error:
com.android.internal.telephony.CommandException: GENERIC_FAILURE
D/AT ( 881): AT> AT+CGREG?
E/GSM ( 1040): RIL implementation has returned an error where it
must succeedcom.android.internal.telephony.CommandException:
GENERIC_FAILURE
D/AT ( 881): AT< +CGREG: 1,0
D/AT ( 881): AT< OK
D/RIL ( 881): onRequest: REGISTRATION_STATE
D/RILJ ( 1040): [0068]< GPRS_REGISTRATION_STATE {0, ffffffff,
ffffffff}
D/AT ( 881): AT> AT+CREG?
D/AT ( 881): AT< +CREG: 2,1,"1901","7215"
D/AT ( 881): AT< OK
D/RIL ( 881): onRequest: QUERY_NETWORK_SELECTION_MODE
D/AT ( 881): AT> AT+COPS?
D/RILJ ( 1040): [0069]< REGISTRATION_STATE {1, 1901, 7215}
D/AT ( 881): AT< +COPS: 0,0,"F SFR"
D/AT ( 881): AT< OK
D/RILJ ( 1040): [0070]< QUERY_NETWORK_SELECTION_MODE {0}
E/GSM ( 1040): Wrong network type: 0
E/GSM ( 1040): Wrong network type: 0
D/GSM ( 1040): Poll ServiceState done: oldSS=[0 home null null
null Unknown CSS not supported -1 -1RoamInd: -1DefRoamInd:
-1EmergOnly: false] newSS=[0 home null null null Unknown CSS not
supported -1 -1RoamInd: -1DefRoamInd: -1EmergOnly: false] oldGprs=1
newGprs=1 oldType=unknown newType=unknown
D/RILJ ( 1040): [0071]> SIGNAL_STRENGTH
D/RIL ( 881): onRequest: SIGNAL_STRENGTH
D/AT ( 881): AT> AT+CSQ
D/AT ( 881): AT< +CSQ: 20,99
D/AT ( 881): AT< OK
D/RILJ ( 1040): [0071]< SIGNAL_STRENGTH {20, 99, 0, 0, 0, 0, 0}
D/RILJ ( 1040): [0072]> SIGNAL_STRENGTH
D/RIL ( 881): onRequest: SIGNAL_STRENGTH
D/AT ( 881): AT> AT+CSQ
D/AT ( 881): AT< +CSQ: 21,99
D/AT ( 881): AT< OK
D/RILJ ( 1040): [0072]< SIGNAL_STRENGTH {21, 99, 0, 0, 0, 0, 0}
D/RILJ ( 1040): [0073]> SIGNAL_STRENGTH
D/RIL ( 881): onRequest: SIGNAL_STRENGTH

[Adrien]

For now i resolved the problem by replacing AT+COPS=3,0;+COPS?;
+COPS=3,1;+COPS?;
+COPS=3,2;+COPS? with AT+COPS=3,0;+COPS?

It does the trick... for now :)

[Walter Glave Raggio]

Hello, can you explain please where do i have to replace that command?

please..

Thank you