Firmware update of MC7455 timing out.

Paul Gildea gildeap at tcd.ie
Thu Nov 30 16:50:52 UTC 2017


>
>
> Hi Paul,
>
>
> On 11/30/2017 04:09 PM, Paul Gildea wrote:
> >
> >
> > I have done some more testing and now realised every MC7455 modem I
> > try to update is now stuck in "low-power" mode  and I can not get it
> > out of it. Although the mode should not be persistent over power cycle
> > it is. I will see are there any other AT commands I can try to get out
> > of that state.
> >
> > I also got a different error a couple of the times I tried today:
> >
> > loading device information before the update...
> > setting firmware preference:
> >   firmware version: '02.24.05.06'
> >   config version:   '002.034_000'
> >   carrier:          'VERIZON'
> > rebooting in download mode...
> > download mode detected
> > error: error creating device: unexpected response received in dload
> > sdp: 0x13
> >
> I had the same kind of error on a MC7304 modem. You can have an hint on
> why you are in low-power mode using AT!pcinfo?
>
> On my modems, I had:
>
> AT!pcinfo?
> State: LowPowerMode
> LPM force flags - W_DISABLE:0, User:0, Temp:0, Volt:0, BIOS:0, GOBIIM:1
> W_DISABLE: 0
> Poweroff mode: 0
> LPM Persistent: 1
>
> OK
>
> In Sierra AT documentation I have, GOBIIM flag is not described.
> I didn't manage to have a usable answer from Sierra on:
>   - where this could come from
>   - how to fix it
> I just stopped upgrading MC7304 modems (I managed to upgrade MC7354 and
> MC7430).
>
> Best regards,
> Christophe Ronco
>



Hi Christophe,


Thanks for the debug command and your experience, I'll look into what the
output means.
For now, mine says the following (doesn't have that flag you mention):

AT!pcinfo?

State: Low Power Mode

LPM voters - Temp:0, Volt:0, User:0, W_DISABLE:0, IMSWITCH:1, BIOS:0

LPM persistence - None



OK


--
paul
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