Nintendo Switch Gets Internal Trinket Hardmod


If you haven’t been following the Nintendo Switch hacking scene, the short version of the story is that a vulnerability was discovered that allows executing code on all versions of the Switch hardware and operating system. In fact, it’s believed that the only way to stop this vulnerability from being exploited is for Nintendo to release a new revision of the hardware. Presumably there are a lot of sad faces in the House of Mario right about now, but it’s good news for us peons who dream of actually controlling the devices we purchase.

To run your own code on Nintendo’s latest and greatest, you must first put it into recovery mode by shorting out two pins in the controller connector, and then use either a computer or a microcontroller connected to the system’s USB port to preform the exploit and execute the binary payload. It’s relatively easy, but something you need to do every time you shut the system down. But if you’re willing to install an Adafruit Trinket M0 inside your Nintendo Switch, you can make things a little easier.

Stemming from work done by [atlas44] and [noemu], the final iteration of this mod was created by [Quantum-cross]. The general idea is to strip down the Trinket M0 board to as small as possible by removing the USB port and a few capacitors, and then install it inside the Switch’s case. By wiring it up to power, the back of the USB-C connector, and the controller connector, the Trinket can interact with all the key components involved in the exploit.

You can even use the Switch’s USB port to update the firmware on the Trinket to load different payloads, though in his walkthrough video after the break, [xboxexpert] mentions eventually this won’t really be necessary as the homebrew software environment on the Switch matures. Indeed, there will almost certainly come a time when performing this exploit on every boot of the system will be made unnecessary, rendering this modification obsolete. But until then, this is a pretty slick way of getting your feet wet in the world of Switch hacking.

It was only six months or so back that we were reading about the first steps towards running arbitrary code on the Nintendo Switch, and just a few months prior to that we saw people experimenting with controlling the system with a microcontroller.



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