Thanks to developers over Xda for the CM 12.1 build.This is the First release of the ROM so there are few bugs there but not any major bugs.There are bugs like“broken bluetooth functionality”, but other than that the ROM is pretty good to install as daily driver.

Important:

*Make sure there is at least 80% battery left on your smartphone before begin.

Warning:

Pre-Requirements:

TWRP (Custom Recovery) is required to Flash the ROM

Downloads

 Download Lollipop 5.1 Gapps (.zip) Download SuperSU (.zip) Step By Step Guide

→First create a nandroid backup From TWRP recovery.Guide > How To Create & Restore Nandroid Backup On Android Devices Source Xda

 Steps  Install CM 12 1 ROM On Amazon Fire Tablet Lollipop - 16