RFC: aleksander/qmi-firmware-update branch

Bjørn Mork bjorn at mork.no
Wed Jan 11 15:02:09 UTC 2017



On January 11, 2017 3:24:13 PM CET, Aleksander Morgado <aleksander at aleksander.es> wrote:
>On Thu, Jan 5, 2017 at 8:09 PM, Bjørn Mork <bjorn at mork.no> wrote:
>>>> But resetting by USB device ID and then uploading in QDL mode work
>>>> flawlessly.  Although I didn't expect "reset" to use the AT
>command:
>>>>
>>>
>>> It was the "suggested" way to reset the devices that don't support
>the
>>> set firwmware preference command, at least that is what I could
>find.
>>
>> OK.  But what about modems without an AT port?
>>
>> I don't remember and am too lazy to search old mailing list posts,
>but I
>> believe the MC7710 updater had a "magic" DMS boot-and-hold QMI
>request.
>> 0x003e?
>
>Where did you see that command?

In requests sent by the mc7710 firmware updater from the SWI SDK.


>I implemented support for "DMS Get/Set Boot Image Download Mode"
>(0x004f and 0x0050), but those doesn't seem to work in the Sierra
>modules. The command does work in a Novatel E396 I have around,
>though.

I wonder if these requests are vendor specific, or maybe reflecting a specific bootloader or image format?


Bjørn


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