Click on menu button to the left of back button and click on the firmware browser. See what is last one and download. I hope to help you.

Sent from my GT-I9505 using Tapatalk 2
GT-I9505 = STOCK 4.4.2 with DBT knox 0x1
GT-I8190 = STOCK 4.1.2 , i don't find any custom rom ok
V-500 = stock 4.4.2 V20D