[Q] How to install Android 5.0 N9005XXUGBNL8 for N900T topic

Can anyone help me? i am like asking my friends here to help me i have n900t unrooted.. i want to flash
Android 5.0 N9005XXUGBNL8 for N900T on my phone. i need a step by step guide as i have the forum here has made me confused there are two to three solutions provided i just dont what to follow ... should i use odin or something else. Please help me guys here. ..... sorry for asking as this is my first time :) thanks.