Hi all, i am sorry to come back in this thread, but as i read i can see that many people have still "big" problems with this cra... board!!!
i did competly changed to APM2.5 and i can say that with exactly the same hardware on my Y6, i have now "another" multi !! it flies really good and without this stress to crash i had with the naviboard!! the soft is amazing!
Sorry Mr Minsoo, but you are not at this level !!!
you will find this apm 2.5 for about 1/3 price of this naviboards .. and you will not spend hours and usd in spares propellers you broke etc... and bad nights thinkink : "but what could be wrong with my settings???" in fact, your settings are perfect! but the board and soft are
believe me , just change your board and you will experience a really different feeling with your multi...