HP HDX - Screen going crazy

Hi all,

I have previously a problem with my HP HDX 16 display, as the screen was flickering and sometimes not showing. It was solved when I replaced the LCD cable a month ago.

Now and suddenly, the laptop screen went off. I dismantled it, made sure every cable is in its place. Now, when I turn it on, the screen does not show properly. I just see bunch of flickering and lines turning off and on (check the youtube video):

http://youtu.be/f90uKynUpfs

I can connect my laptop with the HDMI output and it's displaying correctly on an external monitor.

What could be the problem? Video Inverter? LCD Cable again? 

Thank you for your help.