Root Root with broken screen?


Hello all
I have a Asus MemoPad me173x with broken screen
device is locked and unrooted.
1)I have tried using fastboot to get a custom recovery so i can use a rooted is failing because of (i guess loced bootloader)
2) Then tried the "Unlocking the bootloader" using Flash_tool.exe and it faild with the following error - "To download code aerea is forbidden in this phone" (6010) MPS ERRO