Hussein Berjaoui wroteI tried that yesterday and it didn't work.. and alot of websites says that it's about regions since the takju is for the U.S.A but I'm not that sure. And I heard some people having troubles after flashing so I really don't wanna get trought this if the update is rolling out after a month or two.. but how can I know the exact day?
It just means that samsung updates your phone and not google ... there is absolutely no risk in flashing a yakju build whatsoever and you don't even have to root ... you just have to unlock the bootloader which is very easy to do ...
So unless you don't want jelly bean ... I suggest you get working on it