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Before updating your phone's software, it's recommended that you back up the phone memory to ensure that no data is lost. It can also be useful to back up the phone memory regularly to ensure that no data is lost in case of defects and crashes. Follow these instructions to back up the phone memory.
1. Install BlackBerry Desktop Software
Find the download section on the web page to download BlackBerry Desktop Software.
Download and install BlackBerry Desktop Software.
2. Connect phone and computer
Wait while the program establishes a connection to your phone.