Get to the XDA Forums where they do this sort of thing.
What I'd like to know is why you need to do this. Here I haven't rooted an android phone in years as they work fine now without all that.
How to root LG E405 mobile. I tried to root this cellphone using few one-click rooting applications available out there. But it seems not working as expected. Someone, please state a proper rooting tool suits for LG E405 model.