Backing Up your data/files is very crucial. Lets say you want to install an unofficial, custom ROM, you need to backup your files and data in case the ROM is incompatible with your phone. In such a case, you need to just reset your phone to factory settings and restore your files & data back. Also when upgrading / updating your firmware, automatically you will lose all the data & files on your mobile so backing your data & files up is the most sensible thing to do before anything goes wrong. There are several things to back up: phone book, music, movies, installed applications, text messages and others. There’s no one-touch procedure to do this and you have to follow the steps below to be sure you won’t lose a...