So i have a unique situation. I just recieved this phone asa gift/throw away/give away. I am planning on using it as a tablet and not much more. Its recently gotten a factory reset. That was minutes ago. Now i want to root it. Heres my questions. 1. Do i need a custom recovery already installed? 2 whats this lag fix i read about to root? 3 no computer access till i get home. I wanna do it now. (not going home till tomorrow night.) 3. Im no stranger to root. Got a prevail. So yeah the main one is do i needva custom recovery to do the root?