# 4. Load Firmware

![Transportable Rotorcraft Electronic Control System](https://1229384491-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MZ-_pPVcp9OBMJPFcXn%2F-MkhoncqyfgpeE4NEBsk%2F-MkipA0h4606M8nNgF8N%2FTRECSDino.jpeg?alt=media\&token=e188bb09-783f-402c-b560-117d591f4b49)

Your Raspberry Pi Pico (RPi) will need firmware loaded onto it.  This can be found at [www.tangiblesthatteach.com/downloads](http://www.tangiblesthatteach.com/downloads). Download the current version of the TRECS firmware.&#x20;

* Hold the button on the RPi down while plugging it into a computer. &#x20;
* Once plugged into the computer, release the button. &#x20;
* The Raspberry Pi will show up as a USB drive on your computer in your browser/finder/folders. &#x20;
* Drag and drop firmware onto it.&#x20;
* Once loaded, the drive will "disappear" from your computer.&#x20;
* That's all there is to it!&#x20;
