[Ublox]: UBlox L-210 will not work using ACM interface

[Aleksander Morgado]

Hey Mike,

On Thu, Mar 16, 2017 at 11:46 AM, Engel, Mike <Mike.Engel at digi.com> wrote:
> We are using the UBlox L-210 modem with ModemManager 1.6.4 and the ACM interface we getting the following error message.
>
> ModemManager[852]: <debug> [1489583434.054490] [../../ModemManager-1.6.4/src/mm-port-serial-at.c:459] debug_log(): (ttyACM0): <--
> '<CR><LF>OK<CR><LF>'
> ModemManager[852]: <debug> [1489583434.055143] [../../ModemManager-1.6.4/src/mm-base-sim.c:993] load_sim_identifier_finish(): load
> ed SIM identifier: 8934041816110350586
> ModemManager[852]: <debug> [1489583434.055545] [../../ModemManager-1.6.4/src/mm-base-sim.c:1074] load_imsi(): loading IMSI...
> ModemManager[852]: <debug> [1489583434.055834] [../../ModemManager-1.6.4/src/mm-port-serial.c:1288] mm_port_serial_open(): (ttyACM
> 0) device open count is 3 (open)
> ModemManager[852]: <debug> [1489583434.056177] [../../ModemManager-1.6.4/src/mm-port-serial.c:1345] _close_internal(): (ttyACM0) d
> evice open count is 2 (close)
> ModemManager[852]: <debug> [1489583434.056513] [../../ModemManager-1.6.4/src/mm-port-serial-at.c:459] debug_log(): (ttyACM0): -->
> 'AT+CIMI<CR>'
> ModemManager[852]: <debug> [1489583434.404577] [../../ModemManager-1.6.4/src/mm-port-serial-at.c:459] debug_log(): (ttyACM0): <--
> '<CR><LF>+CME ERROR: 3<CR><LF>'
> ModemManager[852]: <debug> [1489583434.405017] [../../ModemManager-1.6.4/src/mm-serial-parsers.c:364] mm_serial_parser_v1_parse():
>  Got failure code 3: Operation not allowed
> ModemManager[852]: <warn>  [1489583434.405387] [../../ModemManager-1.6.4/src/mm-base-sim.c:1423] load_imsi_ready(): couldn't load
> IMSI: 'Operation not allowed'
> ModemManager[852]: <debug> [1489583434.405699] [../../ModemManager-1.6.4/src/mm-base-sim.c:1194] load_operator_identifier(): loadi
> ng Operator ID...
>
> Any idea what could be the problem? Maybe firmware version or another AT command that unlocks the SIM?

The SIM is SIM-PIN locked, that is why you get the "not allowed"
errors here. Did you try to send the SIM-PIN already? The u-blox Toby
uses the generic commands to manage SIM-PIN, so that should definitely
work, to me it looks as if the unlock attempt was not performed.

And BTW; you really should be using ModemManager git master, as the
"ublox" plugin that I wrote (not in 1.6.x releases) was done for the
Toby L210 :)

-- 
Aleksander
https://aleksander.es