Yes good news for AFTV gen 1 & also AFTV Stick owners, i was just browsing on AFTVNews & guess what i saw.... Well once you recieve the new update to OS5 you can if you like Root it using Kingroot, & also Rbox is working on with porting TWRP custom recovery to a Fire TV 1 that has been rooted by KingRoot. This could be great news to alot of people at the moment with these devices.
Read more here -
http://www.aftvnews.com/fire-os-5-on-the-amazon-fire-tv-1-and-fire-tv-stick-can-be-rooted/
Read more here -
http://www.aftvnews.com/fire-os-5-on-the-amazon-fire-tv-1-and-fire-tv-stick-can-be-rooted/