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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.
Before you can back up the phone memory, you need to install the program Samsung Kies on your computer.
1. Connect phone and computer
2. Back up phone memory
Follow the instructions on the screen to copy data from the phone memory to your computer.