Square Terminal Teardown

Mon, 06 Apr 2020 13:30:57 +0000

Part-way through the Square Terminal Teardown

I recently tore down a square terminal (the one with the LCD screen) and wanted to share some of these results. I haven’t photographed everything as was mostly interested in how the secure areas of it are down. You can see an overview in the following video if you want to see how the whole thing fits together.

https://www.youtube.com/watch?v=pB8T5wZJLcM

Teardown of Square Terminal Video

Amazon Echo Dot Gen 3 - Microphone Disable Circuitry

Sat, 18 Jan 2020 17:36:11 +0000

Have you been interested in the Echo Dot device? One feature they mention is that there is a microphone off button. I spent a few hours reverse engineering this, and recorded (in un-edited glory) the process:

https://youtu.be/xH8LnK9hh6w

The resulting schematic is shown below:

The astute reader will note the only pin under direct control allows the disabling of the microphone, it cannot re-enable it. However - there is one more loophole to check.

Youtube on Colin O'Flynn

Square Terminal Teardown

Amazon Echo Dot Gen 3 - Microphone Disable Circuitry