: Before starting, back up your contacts and messages using the BlackBerry Desktop Software . Connect to PC : Use a high-quality micro-USB cable to connect your to your computer.
: This remains the most reliable way to manage and reload software. You can download version 7.1 (or 6.1 for older environments) from archived sources to your computer. blackberry 9720 device software download better
BlackBerry 10 and BlackBerry OS Services FAQ — End of Life : Before starting, back up your contacts and