All these problems are due to the tiny box now fixed. And in addition, there are tons of great movies and series for lau (Prime-customer previously stayed). Even my lame Internet makes virtually no problems, no idea what Amazon does differently since, but so far I had no film "summon", even in HD.
I especially like the voice search, which works surprisingly well and the possibility via YouTube app quasi use the smartphone as a remote control and comfortably to watch on TV.