Aleksander Morgado aleksander at
Sun Oct 8 07:55:29 UTC 2017

On Sat, Oct 7, 2017 at 11:49 PM, Bjørn Mork <bjorn at> wrote:
> Dan Williams <dcbw at> writes:
>> Not unheard of.  The Pantech UML290 (QMI-based Verizon LTE USB dongle)
>> had a firmware update that changed the USB interface subclass at one
>> point.  Which required a driver change.  Thanks Pantech!
> Yes, sure.  But I haven't heard of anything like that with Sierra
> Wireless modems.

The Netgear AC340U, based on Sierra Wireless (qmi-firmware-update
works), has at least 3 different firmware upgrades that change the USB
layout in all of them (one QMI-only, one QMI+brokenMBIM, one MBIM-only
IIRC). Plus a "hotfix upgrade" to remove the brokenMBIM in the
QMI+brokenMBIM layout.


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