mmcli set allowed and preferred modes - internal failure

[Leo K]

Hi there,

It seems that my modem supports pretty much all modes:

  Modes    |         supported: allowed: 2g; preferred: none
           |                    allowed: 3g; preferred: none
           |                    allowed: 2g, 3g; preferred: 3g
           |                    allowed: 2g, 3g; preferred: 2g
           |                    allowed: 2g, 4g; preferred: 4g
           |                    allowed: 2g, 4g; preferred: 2g
           |                    allowed: 3g, 4g; preferred: 3g
           |                    allowed: 3g, 4g; preferred: 4g
           |                    allowed: 2g, 3g, 4g; preferred: 4g
           |                    allowed: 2g, 3g, 4g; preferred: 3g
           |                    allowed: 2g, 3g, 4g; preferred: 2g
           |           current: allowed: 3g; preferred: none

However, when I'm trying to set the preferred mode to 4g, I'm getting this:

pi at okamoto:~ $ sudo mmcli -m 0 --set-allowed-modes='3g|4g'
--set-preferred-mode='4g'
error: couldn't set current modes:
'GDBus.Error:org.freedesktop.libqmi.Error.Protocol.Internal: QMI protocol
error (3): 'Internal''

>From the debug log:

ModemManager[11730]: [/dev/cdc-wdm0] sent message...
<<<<<< RAW:
<<<<<<   length = 28
<<<<<<   data   =
01:1B:00:00:03:04:00:12:00:33:00:0F:00:1E:03:00:02:08:05:17:01:00:01:11:02:00:18:00
ModemManager[11730]: [/dev/cdc-wdm0] sent generic request (translated)...
<<<<<< QMUX:
<<<<<<   length  = 27
<<<<<<   flags   = 0x00
<<<<<<   service = "nas"
<<<<<<   client  = 4
<<<<<< QMI:
<<<<<<   flags       = "none"
<<<<<<   transaction = 18
<<<<<<   tlv_length  = 15
<<<<<<   message     = "Set System Selection Preference" (0x0033)
<<<<<< TLV:
<<<<<<   type       = "Acquisition Order Preference" (0x1e)
<<<<<<   length     = 3
<<<<<<   value      = 02:08:05
<<<<<<   translated = { [0] = 'lte ' [1] = 'umts '}
<<<<<< TLV:
<<<<<<   type       = "Change Duration" (0x17)
<<<<<<   length     = 1
<<<<<<   value      = 01
<<<<<<   translated = permanent
<<<<<< TLV:
<<<<<<   type       = "Mode Preference" (0x11)
<<<<<<   length     = 2
<<<<<<   value      = 18:00
<<<<<<   translated = umts, lte
ModemManager[11730]: [/dev/cdc-wdm0] received message...
<<<<<< RAW:
<<<<<<   length = 20
<<<<<<   data   =
01:13:00:80:03:04:02:12:00:33:00:07:00:02:04:00:01:00:03:00
ModemManager[11730]: [/dev/cdc-wdm0] received generic response
(translated)...
<<<<<< QMUX:
<<<<<<   length  = 19
<<<<<<   flags   = 0x80
<<<<<<   service = "nas"
<<<<<<   client  = 4
<<<<<< QMI:
<<<<<<   flags       = "response"
<<<<<<   transaction = 18
<<<<<<   tlv_length  = 7
<<<<<<   message     = "Set System Selection Preference" (0x0033)
<<<<<< TLV:
<<<<<<   type       = "Result" (0x02)
<<<<<<   length     = 4
<<<<<<   value      = 01:00:03:00
<<<<<<   translated = FAILURE: Internal


May I know if I entered the syntax correctly please?

Thanks,
Leo
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