[TriEmbed] hacking amazon dash v2

[Pete Soper]

If you read the teardown linked to from the "cheat sheet" page 
<http://triembed.org/blog/?page_id=1653> on our site you'll see Atmel 
doesn't even use conventional packages but some kind of gunk over a 
mostly raw die. The teardown description suggests this version is 
literally a black box and may stay that way for a long time. Now you 
know why I offered to trade folks my V2 buttons for "old, obsolete" V1 
buttons. :-)

-Pete


On 09/14/2016 05:50 PM, Alex via TriEmbed wrote:
>
>
> It's also connected to the ground pad under the chip. Nice, huh?
>
> On Sep 14, 2016, at 17:08, Kevin Williams <kevinkkdi at gmail.com 
> <mailto:kevinkkdi at gmail.com>> wrote:
>
>> Would it be possible to drill out the via between the board layers 
>> and then add a dab of solder back afterwards?
>>
>> On Wed, Sep 14, 2016 at 1:38 PM, Alex Davis via TriEmbed 
>> <triembed at triembed.org <mailto:triembed at triembed.org>> wrote:
>>
>>     Anyone done anything with their prime-day Dash buttons? I found this
>>     interesting page:
>>     http://key-basher.blogspot.com/2016/09/amazon-dash-button-version-2.html
>>     <http://key-basher.blogspot.com/2016/09/amazon-dash-button-version-2.html>
>>
>>     On V2, ERASE is tied low to a via in front of the pin AND to the
>>     ground
>>     plane underneath the chip! That means you can't easily erase it. I
>>     haven't done a teardown on mine, but does anyone know if the
>>     Atmel MCU
>>     is QFP or QFN? If it's QFP, ERASE pin could be lifted. Otherwise, you
>>     have to unsolder the chip, rework the board, then solder it back on.
>>     Ugh. I'd rather not waste time on such a cheap item.
>>
>>     Alex
>>     --
>>     "The theater of noise is proof of our potential."
>>     |\ |  (¯  \/ |¯\  |V| |\ ¯|¯ |¯) | \/ | | | |¯\ (¯  /¯  /\ |V|
>>     |-||_ (_  /\ |_/ @| | |-| |  | \ | /\ |^| | |_/ (_ . \_  \/ | |
>>
>>     You won't find me on Facebook.
>>
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>>
>>
>
>
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