When Google’s $35 Chromecast was originally released, obtaining root access was incredibly easy. So easy that some users believed that it had been intentional on Google’s part, as to allow curious developers to explore the inner workings of the device a bit. Nevertheless, the vulnerability used in that root method was eventually closed. Now, however, developers once again have discovered another exploit that allows root access on the Chromecast.
XDA Developer members Team-Eureka, GTVHacker, and failOverflow have just revealed that they have discovered a new way to root the latest build of the Chromecast software, which is software build 17977.
There are some downsides to this method, however. For one, you need to have either a Teensy 2 or Teensy2++ hardware device, as well as the software from the developer teams. The Teensy 2 runs $16, while the Teensy2++ runs $24.
If you’re willing to invest the time and money into rooting your Chromecast, head over to this XDA thread for specific instructions and download links.