Hello everyone.I am new to this forum and i hope there will be someone who can help me.

I have galaxy s4 GT-I9500 as i have rooted my device and used custom roms and modification on it and now i want to make my device stock.So i tried to flash a stock firmware downloaded from sam mobiles firmware section according to my country and flashed it using odin v 3.09 but after that i was not recieving any updates so i want to flash it using kies 3.
so i tried to use kies feature that is "firmware upgrade and initializing" and i entered my model name that is GT-I9500 and then it asked for S/N (serial number) i also entered it and when i clicked okay it gives me a error saying that is "GT-I9500" does not support initializing .Please there got to be some fix to it.Please help me.I really need to use kies rather than odin.

My firmware details :

Product Code : XSG (UNITED ARAB EMIRATES)
PDA: I9500XXUEMJ8
CSC: I9500OJVEMJ8
MODEM: I9500XXUEMJ8