Read this whole guide before starting.This is for the 3rd gen Fire TV Stick (sheldonp) and Fire TV Stick Lite (sheldon).NOTE: FireOS < 7.2.7.3 requiredNOTE: This process does not require you to open your device.What you need:A Linux installation or live-systemA micro-USB cableInstall python3, PySerial, PyUSB, adb, fastboot. For Debian/Ubuntu something like this should work:sudo apt updatesudo add-apt-repository...Read more