I almost tried all the possible combinations, I mean turn the N off from menu, with a short press at power button, etc etc but same results. Curious is that the problem cames when I left the N off for +- 30 minutes or more...
The only way to have it back on life is several pressings at power button; after 6 or more short pressings then it turn on.
If you read the linked posts, all are experiencing almost the same..and maybe this problem is not more "popular" because we all have the N8XX on all the time.
I get more confused when I started to see that the N810 has the same problem as you can see in the posts.