The Pro version features unlimited duration group meetings. If you find a suspicious app try uninstalling it and see if the reboot issue comes back. If your Kindle Fire keeps shutting off when running certain apps, the RAM may be full and the device may be shutting off to try to “fix” the issue. KFU includes the requisite drivers, apps, and command scripts for rooting the Kindle Fire and getting Google's Android services and apps running on it.
It does take a little bit of command line usage, but not much, and it’s definitely simpler. IMHO, the simplest way to install third-party apps to a Fire TV or Android TV device is to use ADB.These programs break your photographs in small tiles and you can even pan / zoom across these images very similar to the default interface of Google Maps. To embed really large images in your blog, you may either use Deep Zoom or the Google Maps viewer.