My opinion: do some reading about the update first before installing it. You may or may not like what you get.
It makes me wanna smash my phone to pieces.... You were warned.
Thank you for this information! This forum is for support of US products and customers. As your product is a non-US model and support for these models is very limited, please seek a support team for your area. You can do so by using this link: http://www.samsung.com/visitcountry