How To Fully Back Up And Restore Your Android Phone Using Nandroid Backup
Ingredients
Here is what we will be using. The list may seem overwhelming at first, but don't fret - every step is really quite simple.You will need anywhere from 10 minutes to an hour to finish your first backup, depending on your skills.
So here we go. Ready for the big list?
Step 1. Root your phone
Step 2. Install Nandroid Backup
Aaaand we're done. That wasn't so bad, was it?The above steps and the backup/restore themselves are explained in more detail below.
ขอบคุณเครดิตแหล่งที่มา
http://www.androidpolice.com/2010/04/16/complete-guide-how-to-fully-back-up-and-restore-your-android-phone-using-nandroid-backup-and-clockworkmod-rom-manager/