Hello,
I'm a N7 newbie and needs loads of advice. Been scouring the forums with little luck, though learning much.
I'm an American living in Germany with the military - which has it's own problems in regard to the tablet based on my ISP! But, first things first:

Here is my issue (I don't know if it's common or not): I have put apps on my tablet but no updates and have been getting notices about a new update available. I'm currently running 4.1.1, build JRO03S and the notice is to update to 4.2.2. Every time I try to accept this, my tablet turns off and then I get the Android guy with the updating green belly for about 2 minutes and then he croaks to his back with the Red triangle!  I must then press the power button for 15 sec. to get my tablet to turn back on. I've tried this multiple times always with the same result. Please offer suggestions!