Default restore from TWRP

hey guys, how do you restore with TWRP?
Every time i restore i get so many problems, sometime it doesn't boot, and most of the time(when it boots) media stopped or UI stopped.. etc..etc
I am using TWRP 2.7.0.0

I want to restore my officia kitkat without any problem

btw I didn't backup data just boot and system and i wiped all before restoring....

*Should i flash modem or something????

I am using optimusRS pro2 v4.3 my mobile: D802

Please help.............. Thanks in advance for the help