My Kindle Fire HDX 7 (13.3.1.0) was rooted and I installed Safestrap. I downloaded CM11 but when I tried to install the zip file it failed and when my Kindle rebooted I am stuck with the "Kindlefire" logo, in white, on a black screen. I have tried holding down the power button for 1 minute, but that does not help. When I press the power button and hold down the volume button I get to the screen that asks me to reboot or do a factory reset, but neither helps. I can hear the compute beep when I power up the Kindle but the Kindle does not show up in Device Manager. I do have Android SDK installed on the computer and the drivers are all loaded. I just hope this is not the end of the world (!!) and someone can kindly get me out of trouble.Thanks