https://techkyskills.com/how-to-root-lg-tv-webos/ HereNever know about Echo, but I just jailbroke and wiped an Amazon Fireplace Stick and installed TWRP and LineageOS on it. The exploit to unlock the bootloader has become patched in the most up-to-date firmware, but I don't see the arms race ending any time soon.You can down load the reliable root