Reverse Engineering A Droid Personality Chip: Part 1 - Creating The Schematic

The goal of this project is to document the development a custom personality chip PCB from start to finish. At the end of this project the PCB design will be released into the public domain. We begin by examining a stock personality chip and developing a schematic which can then be used to design a new PCB. Note: The final schematic shows C44 as 5pF. It works with a 5pF capacitor, but the stock chips use 10pF. I messed that up, but the difference doesn't appear to create any issues with the functionality of the personality chip. ----- 0:00 Intro 1:42 Plastic Cover Removal 3:59 PCB Inspection 5:17 The Gold Fingers 14:19 The Memory Chip 21:27 The Other Components 33:32 Measuring Capacitor Values 37:33 The Completed Schematic