The Fire TV 2 running software versions 5.0.0, 5.0.2, 22.214.171.124, 126.96.36.199, 5.0.3, 188.8.131.52, 5.0.4, and 5.0.5 is rootable through several methods.
Method 1: KingRoot without a PC
This method is the ideal method for most people because it does not require having an A-to-A USB cable and can be done on the Fire TV itself, without needing a PC. To root using this method follow this guide.
Method 2: KingRoot with a PC
If you prefer to use a PC, then…
- Root using this guide.
- Install TWRP custom recovery using this guide.
- Install the latest pre-rooted ROM using this guide.