Firmware update of MC7455 timing out.

[Dan Williams]

On Thu, 2017-11-30 at 18:35 +0100, Bjørn Mork wrote:
> Paul Gildea <gildeap at tcd.ie> writes:
> 
> > Thanks for the help Dan,
> > 
> > Here are both methods for completeness! (The output is the same for
> > two
> > MC7455's that I tried to upgrade.)
> > 
> > AT!ENTERCND="A710"
> > OK
> > AT!GOBIIMPREF?
> > !GOBIIMPREF:
> >  preferred fw version:    02.24.05.06
> >  preferred carrier name:  VERIZON
> >  preferred config name:   VERIZON_002.034_000
> >  current fw version:      02.08.02.00
> > 
> >  current carrier name:    GENERIC
> > 
> >  current config name:     GENERIC_002.007_001
> > 
> > 
> > 
> >  fw version mismatch
> > 
> >  carrier name mismatch
> > 
> >  config name mismatch
> > 
> > 
> > 
> > OK
> 
> This is a typical result of failed upgrades: You have told the modem
> to
> use the VERIZON 02.24.05.06 firmware, but this version is not yet
> installed.
> 
> I don't know why your firmware upgrades fail, but fixing the low
> power
> issue by switching to one of the installed images is easy:
> 
>  AT!ENTERCND="A710"
>  AT!IMPREF="GENERIC"
>  AT!RESET
> 
> or maybe you want
> 
>  AT!IMPREF="VERIZON"
> 
> instead? Not sure how that will work out, but I see that you do have
> a
> 02.05.07.00 verizon image installed.
> 
> 
> > qmicli -p -d /dev/cdc-wdm2 --dms-list-stored-images
> 
> You can list the same in the AT command interface:
> 
> AT!IMAGE?
> 
> Or maybe AT!GOBIIMAGE? Some firmware versions use AT!GOBIIMPREF and
> AT!GOBIIMAGE, as well as the GOBIIM flag.  I believe newer firmwares
> prefer AT!IMPREF and AT!IMAGE, and use the IMSWITCH flag.  The
> meaning
> is the same.  Whatever works is fine.

Also, typically you want the modem and PRI images to match.  For
example, note that you have a modem image 02.05.07.00_? and a PRI image
02.05.07.00_VERIZON.  These obviously match and could be used with --
dms-set-firmware-preference.

Once you do get the images uploaded to the modem somehow, you can play
around with the --set-firmware-preference to select the right combo. 
The PRI images are like carrier "profiles" of a sort.  So if for
example you have a modem image with no CDMA/EVDO support but you try to
use that with a Verizon PRI that's not gonna work.  But with ATT or
TMobile it might.  That kind of thing.

Dan