i'm new to all of this i've been looking around the store for apps and i've seen some that say you need to be rooted. i just got this phone a couple days ago and i did upgrade the software to the zv4 cuz it kept popping up. anyway to downgrade or to root zv4? i mainly just want the lg touch led notifications but it says it doesn't have access and needs the phone to be rooted. help with be appreciated