[flashrom] Can't identify SPI chip with buspirate_spi programmer

[David Hendricks]

Hi Donald,
Were you able to get it working? With the battery disconnected as you
describe flashing with the Bus Pirate should work fine. I suspect there
must be a bad connection elsewhere.

You might be able to get further assistance on #flashrom on irc.freenode.net
.

On Thu, Jan 14, 2016 at 11:52 PM, Donald Dade <donald.dade at gmail.com> wrote:

> Hi again,
>
> Something else which just occurred to me:
>
> I used flashrom on the Chromebook itself to program this very same
> chip in the first place, without the -p option, which I assume
> defaults to the internal programmer. It worked perfectly. Now that I
> bricked it somehow, I tried to restore the BIOS image using flashrom
> and the bus pirate as the programmer. This is the failure whose log I
> sent you previously.
>
> Any idea why the internal programmer works, but the bus pirate
> programmer can't recognize the chip?
>
> Thanks,
>
> Donald
>
>
> On Thu, Jan 14, 2016 at 10:47 PM, Donald Dade <donald.dade at gmail.com>
> wrote:
> > Hi,
> >
> > I bricked my Chromebook and am trying to recover it.
> >
> > I'm using:
> >
> > Ubuntu 15.10
> > Bus Pirate v3.6 with firmware v6.2
> > flashrom 0.9.8 r1914
> >
> > to try to read a:
> >
> > Windbond 25Q64FV on a Toshiba Chromebook 2 2015 (battery disconnected)
> >
> > by doing:
> >
> > sudo ./flashrom-0.9.8-r1914 -p buspirate_spi:dev=/dev/ttyUSB0 -r
> > spi.bin -VVV -o log.txt
> >
> > but no operations are supported because the chip is not recognized.
> > Can you provide any advice on how to move forward?
> >
> > Thank you,
> >
> > Donald
>
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>



-- 
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.
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