Title: Technical Analysis and Deployment Guide: Team Win Recovery Project (TWRP) Build 3.0.2-0
Full Backups (Nandroid): Creating a bit-for-bit snapshot of your entire system, data, and boot partitions.
Caution:
Unlocked Bootloader: A device's bootloader must be unlocked before a custom recovery like TWRP can be flashed. Attempting to flash on a locked bootloader will typically result in a "security violation" or failure.
TWRP 3.0.2-0 is a version of Team Win Recovery Project, a custom recovery for Android devices. Key features of this version include: Touch Interface
META-INF/com/google/android/:Option B — Flashing the ZIP via an existing custom recovery