May I know the difference of I9300XXEMF6 (latest Malaysia official firmware 4.1.2) vs my I9300DXEMB1 4.1.2??
I received the software update request on yesterday morning and then updated successfully. To my surprise, I don't feel any changes except my ram easily overloaded, and then every time when I browsed internet, it will be lagged and then jump back to home menu if stay for more than 15 mins. Is it normal??

Thank you!!