Before we dive into the "how," it is important to understand the "why." A factory reset is not just a restart; it is a complete erasure of data. You should consider a reset if:
This method works if your BlackBerry 9300 Curve 3G can boot to the home screen and you know the device password (if one is set). How to Factory Reset BLACKBERRY 9300 Curve 3G
Connect the phone to your PC via USB.
To factory reset your BlackBerry 9300 Curve 3G Go to product viewer dialog for this item. Before we dive into the "how," it is
Time required: 20–45 minutes.