# Reconnaissance In this chapter we demonstrate on how to enumerate a device. It makes sense to follow a top down approach and start analyzing from the outside first before opening a device. Opening a unknown device comes always at the risk of triggering a tamper protection or damaging it. Even without opening the device we can already identify potential weaknesses. ## Overview * Closed device * OSINT: * search the web for public information * use FCCID.io to get internal pictures of your device * Investigate USB Ports / SD-card * Opened device * Board Analysis: * Things to look out for on the PCB: * How to identify test pads as potential debug interfaces * component identification (flash chips, MCUs, wireless modules) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.hardbreak.wiki/hardware-hacking/reconnaissance.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.