mobile

Hi,

I am running Aurora Rom v6 on GS4 i9500 based on lollipop 5.0.1. I have been reading a lot about upgrading modem and bootloader. So first of all i would like to know is it really needed to update your bootloader or modem, if yes then how should i do it ? Do i need to just flash the files via odin in PDA mode or some other mode need to be selected ? Also does it require full wiping your cache dalvik cache ?

Here is my current modem number I9500DDUHOA1.

I am not sure how do i find out which bootloader i am running.

Thanks !!