Just be careful applying it. Mine's a bit off at the bottom edge so the edge and the area around the home button lifts a bit + there's like 2-3 bits of dust near the edges: all completely my fault but lazy to adjust already as the important parts of the screen are all clear.

It should fit. The UAG has similar coverage up front as my Neo Chybrid, and the Dream Power doesn't really cover 100% of the area around the screen - it has plenty of clearence for the sides. If you align the bottom correctly it should fit just right there too. As for thickness, the UAG has thicker side lips so there will be plenty of clearence if you drop your phone face first. Even with my relatively thin Neo Chybrid lips there's still ample cleareance.

But the N2 has a curved screen so the sides and bottom WILL lift in the end, even if just by a LITTLE bit.

use samsung kies in computer

me also didn't use before
if you know how to use odin just download the file from sammobile website and flash it

I also can't update through kies and shown the same message... luckily I success update through ota....I also want to know why

All the sifus said about how we should just factory reset after 4.3; for me it's true. It works. (Official 4.3 here)

Perhaps nothing to explain on paper but after backing up all the data & did factory reset & restore the backup, everything works better even the battery life.

I think it's not placebo, just try it, nothing to lose.

so far after disable all bloatware and some useless system app manually in application manager, LOL,..
disable animation on developer options.
after all done and running,.. ram is amazing