From: Michal Semler <cijoml@volny.cz>
To: bluez-users@lists.sourceforge.net
Subject: Re: [Bluez-users] CSR firmware
Date: Sat, 29 May 2004 11:08:05 +0200 [thread overview]
Message-ID: <200405291108.06457.cijoml@volny.cz> (raw)
In-Reply-To: <1085820898.3932.6.camel@pegasus>
On Saturday 29 of May 2004 10:54, Marcel Holtmann wrote:
> Hi Michal,
>
> > have anybody downloaded firmware from csr dongle? I would like to make
> > research if is possible to change vendor ID in it and then flash it back.
> > I think it is possibly way to upgrade firmware in old dongles.
> >
> > Can somebody give me help how download it? I have now access to 14
> > different csr based dongles from different wendors, which have same
> > firmware version. So I'll try find differences in firmware.
>
> the software you search for is my btdfu tool.
>
> http://www.holtmann.org/linux/bluetooth/btdfu-0.2.tar.gz
>
> And you upload a firmware from the dongle (archive mode) and you
> download a new one to a dongle (upgrade mode).
>
> The problem is not the vendor ID. It is the digital signature of the
> firmware file. You can download everything you want onto your dongle,
> but it can happen that the boot loader don't boot the other firmware. In
> that case it will stay in DFU mode. The boot loader can only be changed
> over a SPI connection.
That means, that if I download from dongle original firmware and then flash
other one into dongle and it will not work I can't flash original fw back?
What is SPI connection?
Any related docs?
Michal
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next prev parent reply other threads:[~2004-05-29 9:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-29 0:56 [Bluez-users] CSR firmware Michal Semler
2004-05-29 8:54 ` Marcel Holtmann
2004-05-29 9:08 ` Michal Semler [this message]
2004-05-30 7:14 ` Marcel Holtmann
2004-05-30 10:29 ` Michal Semler
2004-05-30 11:03 ` Marcel Holtmann
2004-05-30 11:17 ` Michal Semler
2004-05-30 12:07 ` Marcel Holtmann
2004-06-01 11:26 ` Steven Singer
2004-06-01 11:55 ` Marcel Holtmann
2004-06-01 14:08 ` Steven Singer
2004-06-01 14:51 ` Marcel Holtmann
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