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--simple-disconnect failed in LTE network for ublox L210

Hi,

I am using the mmcli version 1.10.0 with U-blox Toby L210 03S-01.

I found the action --simple-disconnect failed to disconnect the default bearer in LTE network.

Here is a screenshot:

image

I check the source in plugins/ublox/mm-broadband-bearer-ublox.c and find the disconnect function calling +CGACT=0,<cid> to close the bearer. However, the last bearer is not allowed to be closed in the module L210 under LTE network. The module replies +CME ERROR: Last PDN disconnection not allowed if I try to issue +CGACT=0,<cid>.

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