[Q] Flash ROM to ClemPad Call (MTK 6582 device)

Hi, i'm Andrea, I'm 19, Computer Engineer's student.
The device is rooted and it has TWRP.
I made a backup of the original ROM (4.4.2) but i don't know how to get boot.img from the phone.
This is the Block Info from MTK Droid Root.

Code:

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postimg(.org)/image/hrlwdklq9/  I'm under 10 post, so i can't post links

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I tried with adb shell:

Code:

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adb shell
root@CLEMPADCALL:/ # ls -l /dev/block/platform/
ls -l /dev/block/platform/
drwxr-xr-x root    root              2010-01-04 10:09 mtk-msdc.0
root@CLEMPADCALL:/ # ls -l /dev/block/platform/mtk-msdc.0/by-num
ls -l /dev/block/platform/mtk-msdc.0/by-num
lrwxrwxrwx root    root              2010-01-04 10:09 p1 -> /dev/block/mmcblk0p1
lrwxrwxrwx root    root              2010-01-04 10:09 p2 -> /dev/block/mmcblk0p2
lrwxrwxrwx root    root              2010-01-04 10:09 p3 -> /dev/block/mmcblk0p3
lrwxrwxrwx root    root              2010-01-04 10:09 p4 -> /dev/block/mmcblk0p4
lrwxrwxrwx root    root              2010-01-04 10:09 p5 -> /dev/block/mmcblk0p5
lrwxrwxrwx root    root              2010-01-04 10:09 p6 -> /dev/block/mmcblk0p6
lrwxrwxrwx root    root              2010-01-04 10:09 p7 -> /dev/block/mmcblk0p7

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Now, which is the boot.img?

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