Need someone help me unbrick hard bricked L720 4.4.2

[nguyento1986]

I need to unbrick the L720 4.4.2 NAE, I need someone help dump 128 MB of bootloader.
Here command do back up first 128 MB bootloader.
Thanks all guys.

adb shell
su
dd if=/dev/block/mmcblk0 of=/sdcard/backup.bin bs=1048576 count=128

 

[nguyento1986]

Nobody can help ?