firmware for the note 2 upgrading problems.

[ashanti atma]

i have the international version of Samsung note 2 with rooted .andriod 4.1.1 but now there new update 4.1.2 .so while updating i got the message that u mobile root .so if u upgraded u or mobile will not work properly.so what should i do . shall i upgraded or not. if i upgraded will my mobile works fine ...i need the help