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How to do full backup and restore?

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Posted at 2/2/2019 15:45:41     
Hi.
Is it possible to do full backup image from eMMC and restore it with AndroidTool or other tools?
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Posted at 2/12/2019 10:58:56     
The best and easiest way to do full image backup and restoration is: booting with sd card,
then using the `dd` command:

backup:
   dd if=/dev/mmcblk0 of=backup.img
   sync

restore:
   dd if=backup.img of=/dev/mmcblk0
   sync

Replace '/dev/mmcblk0' with the emmc device file in your board.
There are /dev/mmcblk0 and /dev/mmcblk1 if using sd card to boot.
You can find the sd card one by running `lsblk` command.
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