intro hardware boot security FCSC 2023 solved on


Your paleontologist aunt has been missing for several days. Fortunately, the mayor of her village has contacted you saying that he found your aunt’s electronic ink tablet in a field.

You have just received the tablet, however it does not power up anymore. After a short observation, you notice five small connectors on the side of the tablet. the side of the tablet. You connect a logic analyzer to them, which was shamefully stolen from another of your relatives.

Can you find a clue from this acquisition?

Note: The capture hsa been done using Saleae Logic 2.


  • dystylosaurus.sal
    46.12 KiB – 67a3d7d02bcc302f6fd544f3c3f31e5e1a4e22568d1fb0e9d0e661348fde3642




Share my success on Fediverse, Twitter, Linkedin, Facebook, or via email.

Submit your solution

You can submit your writeup for this challenge. Read the FAQ to learn how to proceed.

You need to be logged in to submit a writeup.


I've been looking for a long time and I still can't find the flag!

You can vote for the solutions you prefer by using the on their respective pages.

DateAuthor Language Tags Vote