[Battlemesh] [FCC] What hardware still works?

[Adam Longwill]

On Feb 23, 2016 12:42 PM, "Adam Longwill" <adam.longwill at gmail.com> wrote:

> I do not have a good understanding of the difference between jtag/serial/
> and tftp. Can someone briefly explain the difference for people like
> myself? Can JTAG flashing replace a locked firmware? I thought the chips
> themselves could be built to only cryptographically accept approved
> firmware? Or is that only with "higher level" flashing methods.
>
> Anyone have a Explain it Like I'm 5 version out there to help explain?
>
> Thank you all.
> On Feb 23, 2016 12:04 PM, "Ben West" <ben at gowasabi.net> wrote:
>
>> Is JTAG intervention now required?  I had thought I'd read that serial
>> console access and/or TFTP recovery mode was sufficient, at least on
>> TP-Link products being discussed.  Since we're talking about products
>> costing only 50-100USD, I would gather that the amount of effort
>> manufacturers are willing to invest in locking the firmware is finite,
>> meaning by extension the effort required to work-around such locks should
>> also be finite.
>>
>> That is, all radio products with firmware presently for sale can have
>> their firmware modified, given sufficient effort.  The fact that
>> sufficiently determined persons can override countermeasures and mod the
>> firmware doesn't appear to endanger their FCC certification.
>>
>> Anyway, similar to the hardware compatibility pages on openwrt.org's
>> wiki, would it make sense to also record in wiki the list of working
>> hardware, along with known work-arounds?
>>
>> What would be a good venue for such wiki pages?  Any of these?
>>
>> https://wiki.openwrt.org/
>> http://battlemesh.org/
>> https://wirelesspt.net/wiki/P%C3%A1gina_principal
>> https://libreplanet.org/wiki/Main_Page
>>
>> On Tue, Feb 23, 2016 at 10:23 AM, Philipp Borgers <
>> borgers at mi.fu-berlin.de> wrote:
>>
>>> On Tue, Feb 23, 2016 at 05:08:52PM +0100, Benjamin Henrion wrote:
>>> > On Tue, Feb 23, 2016 at 4:26 PM, Adam Longwill
>>> > <adam.longwill at metamesh.org> wrote:
>>> > > We have contracts to fulfill. Can we start a discussion here about
>>> what
>>> > > hardware still works? What about Ligowave who came to Battlemesh v8?
>>> They
>>> > > said they gave out unlock codes. Do any of you use them? What
>>> hardware are
>>> > > you STILL buying that STILL works?
>>> > >
>>> > > Also, is it possible to use the JTAG interface to reflash a router
>>> and erase
>>> > > locked down firmware or is it the same as ethernet flashing- I've
>>> never done
>>> > > it.
>>> >
>>> > Yes, depends on the SoC, and if the JTAG pins are properly exposed.
>>> >
>>> > After that, the JTAG software needs to support your flash chip.
>>> >
>>> > Otherwise, since nowadays most flash chips are SPI ones in SOIC8
>>> > format, it is easier to just use a buspirate with a 4x2 clamp hooked
>>> > on the chip, and you will be able to reflash it:
>>> >
>>> >
>>> http://www.dhresource.com/0x0s/f2-albu-g1-M00-CA-EB-rBVaGFQ_GG6AHCR0AAEtkRTBPOQ099.jpg/updated-ic-clamp-soic8-sop8-ic-clip-1-adapter.jpg
>>>
>>> Can someone give a workshop about the tools for flash reading and the
>>> process
>>> involved?
>>>
>>> Maybe we can collect some money in advance so everybody can have the
>>> right tools
>>> at hand?
>>>
>>> Best Philipp
>>>
>>> _______________________________________________
>>> Battlemesh mailing list
>>> Battlemesh at ml.ninux.org
>>> http://ml.ninux.org/mailman/listinfo/battlemesh
>>>
>>>
>>
>>
>> --
>> Ben West
>> http://gowasabi.net
>> ben at gowasabi.net
>> 314-246-9434
>>
>> _______________________________________________
>> Battlemesh mailing list
>> Battlemesh at ml.ninux.org
>> http://ml.ninux.org/mailman/listinfo/battlemesh
>>
>>
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