When you root with spectrum make sure that your phone is in debugging mode, and that you have the lg drivers installed. If that doesn't work, you could always flash another rom, a rooted one. I assume you still have recovery, right?
I'm already sick of your shitposting. You said you're smart. A smart man should know when he is not wanted.
You don't even have an Optimus L3, dumbass. I really hope hecatae will ban you, or at least give you a warning. It makes me really mad to see people like you, pretending to be smart when they don't even know how to use a forum, or even the english language.