Comments on: New Amazon Dash Button Teardown (JK29LP)

By: sidoh

sidoh — Wed, 25 Dec 2019 00:24:31 +0000

In reply to JoRek.

The reason wifi creds don’t stick is that the button needs a “customer secret” that’s normally obtained from a handshake the button performs with Amazon HQ at the end of the setup. Since Amazon isn’t running this service anymore, the button gives up.

Older firmware versions are vulnerable to a buffer overflow in the high frequency audio setup handler. You can use this to write a fake customer secret. Writeup on my blog:

https://blog.christophermullins.com/2019/12/20/rescue-your-amazon-dash-buttons/

If your button has received an OTA update, it’s probably been patched, though.

By: John Smith

John Smith — Fri, 13 Dec 2019 20:50:11 +0000

I would really love to get my buttons back to live too. I can connect to button, but it won’t save the Wi-Fi settings.

By: JoRek

JoRek — Fri, 29 Nov 2019 16:14:14 +0000

Does anybody have a clue how to set up the Dash button again after the battery died? I am now at a point where I can connect to the Amazon Configure Me network, and I can also ping the dash buttons IP 192.168.0.1, but when I try to open http://192.168.0.1 in a browser, all I get is “ERR_CONNECTION_REFUSED”. Any idea how to teach my Wifi to the button again?

By: Matthew Petroff

Matthew Petroff — Fri, 13 Apr 2018 00:29:43 +0000

In reply to warren. I have no idea how the costs scale, other than that the unit cost decreases with scale. I've never made more than a few of a particular circuit board, and I've never used a contract manufacturer.

By: warren

warren — Tue, 10 Apr 2018 19:24:42 +0000

In reply to Matthew Petroff.

Hey Matthew, thanks for the reply. Scale wise you’re talking around 50,000 plus. I’m a design student with little knowledge on electronics, but I’m just trying to gauge what Amazon might be paying to produce their Dash.
Thanks