Owners of a rooted 2nd-generation Fire TV may now update their devices to the latest 22.214.171.124 software version. Rbox has just released a pre-rooted ROM of the new software update, with build number 617513220, that recently started rolling out to all devices. As always, this ROM is identical to the update that Amazon has released, but it will allow you to update your rooted devices without losing root access.
You can download the new 126.96.36.199_r1 pre-rooted ROM from the link at the top of the changelog/download list on this page. Please be sure to donate to Rbox to support him and thank him for continuing to keep all of our rooted devices updated.
This pre-rooted ROM is only for the Fire TV 2. I had been waiting to see if this latest version of the 188.8.131.52 had any issues (since the prior 2 versions were halted for bugs) before passing along the stock update packages to rbox. Someone else captured only the Fire TV 2 stock package and posted it asking rbox to make a new pre-rooted ROM, which he did. That is why there is only a ROM for the Fire TV 2 right now. I’ve captured the stock update images for the Fire TV 1 and Fire TV Stick 1 and have passed them on to rbox. Hopefully he’ll have time to release pre-rooted ROMs for those devices soon.
To install this pre-rooted ROM on a Fire TV 2, use TWRP custom recovery and follow this guide. As always, pre-rooted ROMs cannot be used to root your device. Your device must already be rooted to install this ROM. To see if your device’s software version is rootable and how to root it, see my guide here.