Hey,

I did some further testing and I found some warnings while performing my test for switching between a few operators:

ModemManager[2837]: <warn>  [1508280013.114086] [mm-port-serial.c:515] real_config_fd(): (ttyUSB0): port attributes not fully set ModemManager[2837]: <debug> [1508280013.114511] [mm-port-serial.c:1237] mm_port_serial_open(): (ttyUSB0) device open count is 1 (open) ModemManager[2837]: <debug> [1508280013.114716] [mm-port-serial-at.c:476] mm_port_serial_at_run_init_sequence(): (ttyUSB0): running init sequence... ModemManager[2837]: <debug> [1508280013.115232] [mm-port-serial.c:1099] mm_port_serial_open(): (ttyUSB2) opening serial port... ModemManager[2837]: <warn>  [1508280013.117749] [mm-port-serial.c:515] real_config_fd(): (ttyUSB2): port attributes not fully set ModemManager[2837]: <debug> [1508280013.119844] [mm-port-serial.c:1237] mm_port_serial_open(): (ttyUSB2) device open count is 1 (open) ModemManager[2837]: <debug> [1508280013.122116] [mm-port-serial-at.c:476] mm_port_serial_at_run_init_sequence(): (ttyUSB2): running init sequence... ModemManager[2837]: <debug> [1508280013.123278] [mm-broadband-modem.c:8016] enabling_started(): Flashing primary AT port before enabling... ModemManager[2837]: <debug> [1508280013.127274] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): --> 'ATE0<CR>' ModemManager[2837]: <debug> [1508280013.128563] [mm-port-serial-at.c:440] debug_log(): (ttyUSB2): --> 'ATE0<CR>' ModemManager[2837]: <debug> [1508280013.227661] [mm-broadband-modem.c:3132] load_power_state(): loading power state... ModemManager[2837]: <debug> [1508280013.234163] [mm-port-serial.c:1237] mm_port_serial_open(): (ttyUSB0) device open count is 2 (open) ModemManager[2837]: <debug> [1508280013.603986] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>' ModemManager[2837]: <debug> [1508280013.609967] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): --> 'ATV1<CR>' ModemManager[2837]: <debug> [1508280013.623845] [mm-port-serial-at.c:440] debug_log(): (ttyUSB2): <-- '<CR><LF>OK<CR><LF>' ModemManager[2837]: <debug> [1508280013.628900] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>' ModemManager[2837]: <debug> [1508280013.630455] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): --> 'AT+CMEE=1<CR>' ModemManager[2837]: <debug> [1508280013.648701] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>' ModemManager[2837]: <debug> [1508280013.650298] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): --> 'ATX4<CR>' ModemManager[2837]: <debug> [1508280013.662284] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>' ModemManager[2837]: <debug> [1508280013.663120] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): --> 'AT&C1<CR>' ModemManager[2837]: <debug> [1508280013.672534] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>' ModemManager[2837]: <debug> [1508280013.673366] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): --> 'AT+CFUN?<CR>' ModemManager[2837]: <debug> [1508280013.690510] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): <-- '<CR><LF>+CFUN: 1<CR><LF><CR><LF>OK<CR><LF>' ModemManager[2837]: <debug> [1508280013.692354] [mm-iface-modem.c:3259] set_power_state(): No need to change power state: already in 'on' power state ModemManager[2837]: <debug> [1508280013.693418] [mm-port-serial.c:1296] mm_port_serial_close(): (ttyUSB0) device open count is 1 (close) ModemManager[2837]: <debug> [1508280013.694636] [mm-port-serial.c:1237] mm_port_serial_open(): (ttyUSB0) device open count is 2 (open) ModemManager[2837]: <debug> [1508280013.697023] [mm-port-serial.c:1237] mm_port_serial_open(): (ttyUSB0) device open count is 3 (open) ModemManager[2837]: <debug> [1508280013.702588] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): --> 'AT+IFC=1,1<CR>' ModemManager[2837]: <debug> [1508280013.724477] [mm-port-serial-at.c:440] debug_log(): (ttyUSB0): <-- '<CR><LF>+CME ERROR: 50<CR><LF>'
ModemManager[2837]: Invalid mobile equipment error code: 50
ModemManager[2837]: <debug> [1508280013.725338] [mm-serial-parsers.c:364] mm_serial_parser_v1_parse(): Got failure code 100: Unknown error ModemManager[2837]: <debug> [1508280013.725604] [mm-port-serial.c:1296] mm_port_serial_close(): (ttyUSB0) device open count is 2 (close) ModemManager[2837]: <warn>  [1508280013.725990] [mm-port-serial.c:811] port_serial_queue_process(): (ttyUSB0) response array is not empty when using cached reply, cleaning up 14 bytes

is one error sequence

the other error is

ModemManager[2837]: <warn>  [1508280021.578899] [huawei/mm-broadband-modem-huawei.c:2181] mm_broadband_modem_huawei_peek_port_at_for_data(): Couldn't find associated cdc-wdm port for 'net/usb0'


Just to update:

The modem is still a Huawei ME909s-120

it's about connecting to 3 or 4 mobile networks, measuring download speed or similar stuff for each of them

One problem is that I get timeout errors for --3gpp-register-in-operator if I was connected to a different operator before

e.g. I connect to one operator, it succeeds and I can measure download speed etc, then if I want to connect to a different operator like 15 seconds after I connected to the first one and it needs 10-15 seconds until I get a timeout error, I suggest because the modem is still busy with the previous operations for connecting with the first operator?!(correct me if I'm wrong)

Is there a way to stabilize connecting that way to different operators?

Because I think I wouldn't have the second problem if that first one was solved


The second problem is that I get a weird timeout error at disabling the modem after I recognize that connecting to the third network fails and I therefore want to disconnect, disable and enable the modem to try connecting again

When I try to connect to the second operator I just get a timeout error and after that I try it again with disconnecting, disable and enable the modem again and then it works


Kind regards,

Marcel


On 15.10.2017 11:35, Marcel H. wrote:
Aah, thanks a lot!
It's just a regular timeout error
As well as the error when I try to disable the modem is also a timeout error So maybe I should check somehow if the modem is still busy or something like that However, I'll do some further testing tomorrow and will come back if I find out some more Am 15.10.2017, 10:37, Aleksander Morgado <[email protected]> schrieb:

    Hey,

    > I have a problem when frequently changing operators
    >
    > I tried to connect to 3 different operators, first enable the
    modem, then
    > try to register in operator, if successfully I use
    simple-connect and
    > measure upload speed etc, then disconnect and disable modem and
    start over
    > again
    >
    > Well I have some problems now to set up a stable way to connect
    to the 3rd
    > operator
    >
    > When I enable the modem and try to use
    --3gpp-register-in-operator, it is
    > hard to say if it succeeds, so if it doesn't, I just disconnect,
    disable and
    > enable again, but when I disable the modem at that point it
    seems kind of
    > busy doing something, but I don't understand what it actually does
    >
    > I tried to debug mm, but I still don't get it, I hope you don't
    mind me
    > posting a piece of the debugging output here:
    >
    > ModemManager[4471]: <debug> [1507757863.162630]
    > [huawei/mm-broadband-modem-huawei.c:2438]
    modem_load_signal_quality():
    > loading signal quality...
    > ModemManager[4471]: <debug> [1507757863.163091]
    [mm-broadband-modem.c:1991]
    > modem_load_signal_quality(): loading signal quality...
    > ModemManager[4471]: <debug> [1507757863.163565]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB0) device open count is 6 (open)
    > ModemManager[4471]: <info> [1507757864.691217]
    [mm-iface-modem.c:1392]
    > __iface_modem_update_state_internal(): Modem
    > /org/freedesktop/ModemManager1/Modem/0: state changed (registered ->
    > disabling)
    > ModemManager[4471]: <debug> [1507757864.705892]
    [mm-iface-modem.c:1165]
    > update_signal_quality(): Modem
    /org/freedesktop/ModemManager1/Modem/0:
    > signal quality updated (0)
    > ModemManager[4471]: <debug> [1507757864.712021]
    [mm-iface-modem.c:1282]
    > periodic_signal_quality_check_disable(): Periodic signal quality
    checks
    > disabled
    > ModemManager[4471]: <debug> [1507757864.713914]
    [mm-iface-modem.c:894]
    > mm_iface_modem_update_access_technologies(): Modem
    > /org/freedesktop/ModemManager1/Modem/0: access technology
    changed (umts ->
    > unknown)
    > ModemManager[4471]: <debug> [1507757864.719503]
    [mm-iface-modem.c:1008]
    > periodic_access_technologies_check_disable(): Periodic access
    technology
    > checks disabled
    > ModemManager[4471]: <debug> [1507757864.726004]
    [mm-broadband-modem.c:8282]
    > disabling_step(): Modem has messaging capabilities, disabling
    the Messaging
    > interface...
    > ModemManager[4471]: <debug> [1507757864.731147]
    [mm-broadband-modem.c:5791]
    > set_messaging_unsolicited_events_handlers(): (ttyUSB0) Removing
    messaging
    > unsolicited events handlers
    > ModemManager[4471]: <debug> [1507757864.732277]
    [mm-broadband-modem.c:5791]
    > set_messaging_unsolicited_events_handlers(): (ttyUSB2) Removing
    messaging
    > unsolicited events handlers
    > ModemManager[4471]: <debug> [1507757864.733760]
    [mm-broadband-modem.c:8294]
    > disabling_step(): Modem has location capabilities, disabling the
    Location
    > interface...
    > ModemManager[4471]: <debug> [1507757864.734843]
    > [mm-iface-modem-location.c:765] setup_gathering(): Need to
    disable the
    > following location sources: '3gpp-lac-ci'
    > ModemManager[4471]: <debug> [1507757864.744200]
    [mm-broadband-modem.c:8322]
    > disabling_step(): Modem has 3GPP/USSD capabilities, disabling
    the Modem
    > 3GPP/USSD interface...
    > ModemManager[4471]: <debug> [1507757864.745383]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB0) device open count is 7 (open)
    > ModemManager[4471]: <debug> [1507757917.238256]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB2): <-- '<CR><LF>^RSSI: 3<CR><LF>'
    > ModemManager[4471]: <debug> [1507757917.248108]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>^RSSI: 3<CR><LF><CR><LF>^HCSQ:
    > "WCDMA",29,15,37<CR><LF>'
    > ModemManager[4471]: <debug> [1507757917.249324]
    > [huawei/mm-broadband-modem-huawei.c:1543]
    huawei_signal_changed(): 3GPP
    > signal quality: 9
    > ModemManager[4471]: <debug> [1507757917.256592]
    [mm-iface-modem.c:1165]
    > update_signal_quality(): Modem
    /org/freedesktop/ModemManager1/Modem/0:
    > signal quality updated (9)
    > ModemManager[4471]: <debug> [1507757917.259668]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB2): <-- '<CR><LF>^HCSQ:
    "WCDMA",29,15,37<CR><LF>'
    > ModemManager[4471]: <info> [1507757938.156182]
    [mm-iface-modem-3gpp.c:1169]
    > update_registration_state(): Modem
    /org/freedesktop/ModemManager1/Modem/0:
    > 3GPP Registration state changed (searching -> idle)
    > ModemManager[4471]: <debug> [1507757938.162515]
    [mm-base-bearer.c:260]
    > modem_3gpp_registration_state_changed(): Bearer not allowed to
    connect, not
    > registered in 3GPP network
    > ModemManager[4471]: <debug> [1507757938.163074]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 6 (close)
    > ModemManager[4471]: <debug> [1507757938.186571]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT+COPS=3,2;+COPS?<CR>'
    > ModemManager[4471]: <debug> [1507757938.217214]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>+COPS:
    > 1,2,"26203",2<CR><LF><CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.228361]
    > [huawei/mm-broadband-modem-huawei.c:2038]
    modem_3gpp_load_operator_name():
    > loading Operator Name (huawei)...
    > ModemManager[4471]: <debug> [1507757938.230356]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB0) device open count is 7 (open)
    > ModemManager[4471]: <debug> [1507757938.237333]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 6 (close)
    > ModemManager[4471]: <debug> [1507757938.239402]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT^SYSINFOEX<CR>'
    > ModemManager[4471]: <debug> [1507757938.267262]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>^SYSINFOEX:
    > 2,3,1,1,,3,"WCDMA",41,"WCDMA"<CR><LF><CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.268511]
    > [huawei/mm-broadband-modem-huawei.c:582]
    load_access_technologies_finish():
    > Access Technology: 'umts'
    > ModemManager[4471]: <debug> [1507757938.269158]
    [mm-iface-modem.c:894]
    > mm_iface_modem_update_access_technologies(): Modem
    > /org/freedesktop/ModemManager1/Modem/0: access technology
    changed (unknown
    > -> umts)
    > ModemManager[4471]: <debug> [1507757938.269472]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 5 (close)
    > ModemManager[4471]: <debug> [1507757938.281278]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT+CSQ<CR>'
    > ModemManager[4471]: <debug> [1507757938.296941]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>+CSQ:
    3,99<CR><LF><CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.297864]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 4 (close)
    > ModemManager[4471]: <debug> [1507757938.298720]
    [mm-iface-modem.c:1165]
    > update_signal_quality(): Modem
    /org/freedesktop/ModemManager1/Modem/0:
    > signal quality updated (9)
    > ModemManager[4471]: <debug> [1507757938.299179]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT+CSQ<CR>'
    > ModemManager[4471]: <debug> [1507757938.312601]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>+CSQ:
    3,99<CR><LF><CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.313516]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 3 (close)
    > ModemManager[4471]: <debug> [1507757938.314367]
    [mm-iface-modem.c:1165]
    > update_signal_quality(): Modem
    /org/freedesktop/ModemManager1/Modem/0:
    > signal quality updated (9)
    > ModemManager[4471]: <debug> [1507757938.315042]
    [mm-broadband-modem.c:4908]
    > set_unsolicited_result_code_handlers(): (ttyUSB0) Removing
    unsolicited
    > result code handlers
    > ModemManager[4471]: <debug> [1507757938.315297]
    [mm-broadband-modem.c:4908]
    > set_unsolicited_result_code_handlers(): (ttyUSB2) Removing
    unsolicited
    > result code handlers
    > ModemManager[4471]: <debug> [1507757938.315563]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 2 (close)
    > ModemManager[4471]: <debug> [1507757938.327921]
    [mm-broadband-modem.c:8334]
    > disabling_step(): Modem has 3GPP capabilities, disabling the
    Modem 3GPP
    > interface...
    > ModemManager[4471]: <debug> [1507757938.329574]
    [mm-iface-modem-3gpp.c:1310]
    > periodic_registration_check_disable(): Periodic 3GPP
    registration checks
    > disabled
    > ModemManager[4471]: <debug> [1507757938.332616]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB0) device open count is 3 (open)
    > ModemManager[4471]: <debug> [1507757938.335165]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT+COPS=3,0;+COPS?<CR>'
    > ModemManager[4471]: <debug> [1507757938.370516]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>+COPS:
    > 1,0,"E-Plus",2<CR><LF><CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.371558]
    > [huawei/mm-broadband-modem-huawei.c:2028]
    > modem_3gpp_load_operator_name_finish(): loaded Operator Name: E-Plus
    > ModemManager[4471]: <debug> [1507757938.372172]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 2 (close)
    > ModemManager[4471]: <info> [1507757938.379425]
    [mm-iface-modem-3gpp.c:1079]
    > update_registration_reload_current_registration_info_ready(): Modem
    > /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state
    changed
    > (registering -> roaming)
    > ModemManager[4471]: <debug> [1507757938.391976]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT+CREG=0<CR>'
    > ModemManager[4471]: <debug> [1507757938.412542]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.413389]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB2) device open count is 2 (open)
    > ModemManager[4471]: <debug> [1507757938.413937]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 1 (close)
    > ModemManager[4471]: <debug> [1507757938.414343]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB2): --> 'AT+CREG=0<CR>'
    > ModemManager[4471]: <debug> [1507757938.430404]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB2): <-- '<CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.432294]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB0) device open count is 2 (open)
    > ModemManager[4471]: <debug> [1507757938.432761]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB2) device open count is 1 (close)
    > ModemManager[4471]: <debug> [1507757938.435627]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT+CGREG=0<CR>'
    > ModemManager[4471]: <debug> [1507757938.461267]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.462188]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB2) device open count is 2 (open)
    > ModemManager[4471]: <debug> [1507757938.462626]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 1 (close)
    > ModemManager[4471]: <debug> [1507757938.463019]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB2): --> 'AT+CGREG=0<CR>'
    > ModemManager[4471]: <debug> [1507757938.483758]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB2): <-- '<CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.484400]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB2) device open count is 1 (close)
    > ModemManager[4471]: <debug> [1507757938.486265]
    [mm-broadband-modem.c:3648]
    > modem_3gpp_cleanup_unsolicited_registration_events(): (ttyUSB0)
    cleaning up
    > unsolicited registration messages handlers
    > ModemManager[4471]: <debug> [1507757938.489370]
    [mm-broadband-modem.c:3648]
    > modem_3gpp_cleanup_unsolicited_registration_events(): (ttyUSB2)
    cleaning up
    > unsolicited registration messages handlers
    > ModemManager[4471]: <debug> [1507757938.497321]
    [mm-port-serial.c:1237]
    > mm_port_serial_open(): (ttyUSB0) device open count is 2 (open)
    > ModemManager[4471]: <debug> [1507757938.503806]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): --> 'AT^CURC=0<CR>'
    > ModemManager[4471]: <debug> [1507757938.524718]
    [mm-port-serial-at.c:440]
    > debug_log(): (ttyUSB0): <-- '<CR><LF>OK<CR><LF>'
    > ModemManager[4471]: <debug> [1507757938.525473]
    [mm-port-serial.c:1296]
    > mm_port_serial_close(): (ttyUSB0) device open count is 1 (close)
    > ModemManager[4471]: <info> [1507757938.526055]
    [mm-iface-modem-3gpp.c:1169]
    > update_registration_state(): Modem
    /org/freedesktop/ModemManager1/Modem/0:
    > 3GPP Registration state changed (roaming -> unknown)
    > ModemManager[4471]: <debug> [1507757938.530230]
    [mm-base-bearer.c:260]
    > modem_3gpp_registration_state_changed(): Bearer not allowed to
    connect, not
    > registered in 3GPP network
    > ModemManager[4471]: <debug> [1507757938.537998]
    [mm-iface-modem.c:894]
    > mm_iface_modem_update_access_technologies(): Modem
    > /org/freedesktop/ModemManager1/Modem/0: access technology
    changed (umts ->
    > unknown)
    >
    >
    > I think the problem is somewhere here to find, but I just don't
    see the
    > point
    >
    > The lines before those I just postet were about the
    > --3gpp-register-in-operator, but as it failed, I just
    disconnected and
    > disabled again, but it nevertheless seemed to update some signal
    quality
    > stuff
    >
    > Is the problem something about that "Removing unsolicited result
    code
    > handlers" and "cleaning up unsolicited registration messages
    handlers"
    > stuff?
    >
    >
    > Well I should now also say something about the hardware I use:
    >
    > I'm using a Huawei ME909s-120 with the mmcli version 1.4.0
    >
    >
    > I hope you can help me, as I really have no more idea what to do
    anymore
    >
    > If I can provide you any helpful information, just tell me
    >
    >

    What's the error you get when trying to register in the operator
    manually?

    The sequence you posted looks mostly good to me, all that happens when
    you disable the modem (e.g. removing unsolicited message handlers,
    disabling periodic polling of reg info or signal quality...). There is
    one thing, though, that gets in the middle of the disabling sequence,
    which is the "AT+COPS=3,0;+COPS?" call and its response, but that may
    just be because it was scheduled before the disabling sequence started
    to happen, but that shouldn't have any big effect, I think.

-- Aleksander
    https://aleksander.es



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