If you are worried about bricking your device, make sure you have a copy of the official release OS from your provider. Keep it on your computer in a safe place and go ahead with the newer OS loading. If the newer OS does not work for your device, wipe the device and reload the official OS again. I cannot stress enough that you should make a backup copy of all your information on the computer before doing any of this.
Good luck, follow the directions on the forum for upgrading OS and have fun!
Have you ever wondered why things intended to make our lives simpler keep getting more complicated to use?