How to upgrade BlackBerry 9300 operating system

Steps to upgrade the operating system BlackBerry 9300 Step 1. Visit BlackBerry page “Software Update”. Step 2. Click on the "Check for Updates"Located at the bottom of the Web site. A box is displayed asking you to save the program. Step 3. Click "Save File". The installer program is downloaded to your computer. Step 4. Loading the installer when the program finishes downloading. This is