Use powerful tools like Titanium Backup to back up entire app data sets.
Rooting is a powerful modification that should be approached with caution: How to Root Android Gingerbread Phone Easily universal gb root v7zip updated
Copy the universal_gb_root_v7.zip (or the latest updated version) to the root directory of your phone's SD card using a USB cable or a microSD adapter. Use powerful tools like Titanium Backup to back
Go to Settings > Applications and allow the installation of apps from sources other than the Play Store. universal gb root v7zip updated
While this method is generally non-destructive, rooting always carries a risk of data loss. It is recommended to back up your essential contacts and files first. Step-by-Step Installation Guide