Kevin Chung
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hardware

A collection of 3 posts
Taking over a Dead IoT Company
electronics Featured

Taking over a Dead IoT Company

5 years after NYCTrainSign collapsed, I investigate why the company failed and end up writing an exploit to take over their fleet.
Jan 9, 2023 15 min read
Pimp My Walmart PC
hardware

Pimp My Walmart PC

TL;DR Reverse engineering HP's proprietary PSU so that we can make a cheap gaming PC with parts from Walmart and an old GPU I'm no environmentalist but I don't really throw away working computer parts. I use them until they break beyond any sense of repairability. You can call
Jul 30, 2021 10 min read
Replacing Macbook Air Keys
tech support

Replacing Macbook Air Keys

A friend of mine ran into a problem. The keys on her Macbook Air started randomly falling off the keyboard! Not only is this a problem, but it seemed to be spreading. Four keys had become loose and were randomly falling off while typing. This is the story of all
Nov 5, 2017 5 min read
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