Re: minicom returning invalid AT ... command

I read somewhere in the past that too big cards were not accepted. I'm using
a 256 MB card and it's perfectly recognized. Don't know if that helps...

Another tip: When I want to restore wince, I insert the SD card before
resetting
the device with the appropriate keys combination.

2007/10/17, pHilipp Zabel <philipp.zabel_at_gmail.com>:
>
> On 10/17/07, Brian Green <brian.green_at_bdgreen.info> wrote:
> > pHilipp Zabel wrote:
> > > On 10/16/07, Brian Green <brian.green_at_bdgreen.net> wrote:
> > >> Hi Philipp
> > >>
> > >> pHilipp Zabel wrote:
> > >>> On 10/16/07, Brian Green <brian.green_at_bdgreen.info> wrote:
> > >>>> Hi
> > >>>>
> > >>>> I'm trying to re-installed Mobile 5.0 to my hx4700.
> > >>>>
> > >>>> Currently the hx4700 has the SDG Systems (1.2.4.hx4700) bootloader
> in
> > >>>> ROM, with GPE 2.7 Linux 2.6.16.hh2 - Familiar v 0.8.4.
> > >>>>
> > >>>> I believe I still have the original image created by dd back in
> 2006
> > >>>> which I have just restored, using dd, to a freshly formatted 1GB
> SD.
> > >>>>
> > >>>> When I try to execute s2d, minicom gives:
> > >>>>
> > >>>> "
> > >>>> Welcome to minicom 2.2
> > >>>>
> > >>>> OPTIONS: I18n
> > >>>> Compiled on Nov 26 2006, 03:37:56.
> > >>>> Port /dev/ttyUSB0
> > >>>>
> > >>>> Press CTRL-A Z for help on special keys
> > >>>>
> > >>>> Invalid command : AT V1 X4 &c1 E1 Q0
> > >>> That's ok. "AT V1 X4 &c1 E1 Q0" is what minicom sends to initialize
> > >>> the modem on the other end (see minicom -s -> modem & dialing ->
> init
> > >>> string), and the htc bootloader obviously doesn't understand AT
> > >>> commands.
> > >>>
> > >>>> For a help screen, use command ? or h
> > >>>> USB>
> > >>>> "
> > >>>>
> > >>>> Entering the command s2d gives:
> > >>>>
> > >>>> "
> > >>>> Invalid command : s2d
> > >>>> For a help screen, use command ? or h
> > >>>> "
> > >>> And that's ok, too, because in the bootloader version shipped with
> the
> > >>> hx4700, the s2d command is not implemented. The only way to put that
> > >>> image back into flash is to put the SD card in and have the
> bootloader
> > >>> recognize it automatically on startup (it says 'press power to
> flash'
> > >>> or similar if the checksums are correct).
> > >>> Or maybe soon with my small USB flashing tool
> > >>> (http://www.linuxtogo.org/~ph5/htc-tools/), if somebody supplies the
> > >>> hx4700 wince partition list for htc-flash.c and isn't afraid to
> test.
> > >>> Patches welcome :)
> > >>>
> > >> OK. I started the SDG bootloader with Contacts, Inbox, and Reset.
> > >>
> > >> I get the SDG Systems Embedded Reflash Utility screen. Then "Can't
> read
> > >> control file". Which is repeated when I press Record.
> > >>
> > >> So, the checksum is wrong?
> > >
> > > No no, if you want to flash an SD image that was created with d2s by
> > > the _HTC_ bootloader, you also have to use the HTC bootloader to write
> > > it back. Plug in the SD card, start the HTC loader with
> > > <Contacts>+<iTask>+<Reset>, and if you are lucky and everything went
> > > right during backup and restoration of the SD card image, it should be
> > > recognized at this point.
> > >
> > > regards
> > > Philipp
> >
> > But, "<Contacts>+<iTask>+<Reset>" merely presents me with the Serial HP
> > v1.01 screen, and then the iPAQ hangs ...
> >
> > (This is the sequence by which I got to the USB prompt, above ...)
>
> Then it doesn't recognize the SD card (for whatever reason). It should
> change the "Serial" or "USB" line to a string similar to "Press power
> to flash" automatically, as soon as the SD card is inserted (or
> instantly, right from the beginning, if you boot with the card already
> inserted).
>
> regards
> Philipp
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>

-- 
Sébastien LORQUET - 이세영 (李世榮)
Ingénieur ENSPG 2006 / ENSIMAG-ASI 2007