memo:
adb shell
cd /dev/block
excute dd commond each of "mmcblk" file.
dd if=/dev/block/mmcblk0 of=/sdcard/peak_bk/mmcblk0
dd if=/dev/block/mmcblk0p1 of=/sdcard/peak_bk/mmcblk0p1
dd if=/dev/block/mmcblk0p10 of=/sdcard/peak_bk/mmcblk0p10
dd if=/dev/block/mmcblk0p11 of=/sdcard/peak_bk/mmcblk0p11
dd if=/dev/block/mmcblk0p12 of=/sdcard/peak_bk/mmcblk0p12
dd if=/dev/block/mmcblk0p13 of=/sdcard/peak_bk/mmcblk0p13
dd if=/dev/block/mmcblk0p14 of=/sdcard/peak_bk/mmcblk0p14
dd if=/dev/block/mmcblk0p15 of=/sdcard/peak_bk/mmcblk0p15
dd if=/dev/block/mmcblk0p16 of=/sdcard/peak_bk/mmcblk0p16
dd if=/dev/block/mmcblk0p17 of=/sdcard/peak_bk/mmcblk0p17
dd if=/dev/block/mmcblk0p18 of=/sdcard/peak_bk/mmcblk0p18
dd if=/dev/block/mmcblk0p19 of=/sdcard/peak_bk/mmcblk0p19
dd if=/dev/block/mmcblk0p2 of=/sdcard/peak_bk/mmcblk0p2
dd if=/dev/block/mmcblk0p20 of=/sdcard/peak_bk/mmcblk0p20
dd if=/dev/block/mmcblk0p21 of=/sdcard/peak_bk/mmcblk0p21
dd if=/dev/block/mmcblk0p3 of=/sdcard/peak_bk/mmcblk0p3
dd if=/dev/block/mmcblk0p4 of=/sdcard/peak_bk/mmcblk0p4
dd if=/dev/block/mmcblk0p5 of=/sdcard/peak_bk/mmcblk0p5
dd if=/dev/block/mmcblk0p6 of=/sdcard/peak_bk/mmcblk0p6
dd if=/dev/block/mmcblk0p7 of=/sdcard/peak_bk/mmcblk0p7
dd if=/dev/block/mmcblk0p8 of=/sdcard/peak_bk/mmcblk0p8
dd if=/dev/block/mmcblk0p9 of=/sdcard/peak_bk/mmcblk0p9
dd if=/dev/block/mmcblk1 of=/sdcard/peak_bk/mmcblk1
dd if=/dev/block/mmcblk1p1 of=/sdcard/peak_bk/mmcblk1p1
