Manuals of all kinds of tools that helps in flashing of all kinds of Android and Windows mobile phones; using only a simple USB cable (no need of any kind of costly software boxes ). Many secret codes of all kinds of Android and Windows mobile phones. Jumper connection of mostly used PA S( power amplifier)in China phones. Solutions of most frequently arising faults of all kinds of Android and Windows mobile phones( like samsara, no ki a, Micromax, Gionee, Sony etc). I me I rebuilding tips by secret codes only. I me I rebuilding and network related troubleshooting by volcano, Z3X, riff boxes. Rooting and unrooting procedure of different kinds of Android mobile phones. Hardware architecture of samsara Android phones. Troubleshooting of i-phone and blackberry cell phones.