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Before updating the device software, it is recommended that you back up the device memory to ensure that no data is lost. It can also be useful to back up the device memory regularly to ensure that no data is lost in case of defects, crashes etc. Follow these instructions to back up the memory.
Connect the device and the computer
Connect the data cable to the device socket and to the computer's USB port.
Back up memory
Start a file manager on your computer and find your device in the computer's file system.
Go to the required folders or the required files and move or copy them to the computer.