All versions of towelroot are not created the same it seems. I had rooted my Kindle Fire HDX 8.9 and done everything it seems that everyone here had posted. Installed Super SU, KindleFree Pro, etc. Well, the pesky Kindle Fire updated nonetheless and I had to search for and find a version of towelroot that would work to re root the device again. At the same time, it was a different version of towelroot that rooted my 2 day old phone weeks ago and before I knew it, I was getting nags that when I was connected to wifi again, the phone was going to update OS! I did I boatload of searching on the internet and discovered that the Fire TV uses system app Device Services Platform (DSP) to do OTA updates. I just took a gamble and used ES File Explorer to uninstall that system app. ES File Explorer gave me an error saying uninstall failed (on phone and Kindle HDX 8.9). but on reboot nag was gone and I continue to have access to Gapps, playstore, Chrome, everything. I did use xposed installer to load Gapps. Amazon Instant video still works, it's all the phone it should be and is fast as heck and pretty, lol.
I have no idea why there are so many sources for towelroot and why seemingly same versions really are NOT. I just know that Google is your friend and shotgun approach works and there is a version that will your phone. I am not a geek and did this
Hi @Dilbert1959 - could you please post in this thread, or PM me, the towelroot apk which worked for you?