Blank laptop screen + HDMI not working + external on VGA only

Okey so lets began from the top : 

This started after (stupidly) I updated my ATI driver without uninstalling the pervious one. At first the laptop display + vga external output ran fine, but then they started to flicker (white lines for a few millisec). Then the Laptop display disappeared completely. 

The laptop's internal screen is not working and is completely blank. It is not being recognized by the laptop itself (i.e in Resolution the default monitor is external display) also dxdiag doesn't recognize laptop internal display. HDMI output is also not working. When connected, the screen waits for a second but it displays no signal. 
VGA output is working and I am able to boot the computer directly to that screen.

When I ran the laptop with ati driver for the gfx card (Mobility Radeon HD 6230), Blue Screen of Death (BSoD) greeted me. I ran the PC in soft mode, uninstalled the driver (using driver fusion software) and restarted...(The reason I mentioned the driver fusion software is because, otherwise when I tried to uninstall using Ati catalyst, it gave me a " failed to load detection driver error".)

Anyways, now after removing it via driverfusion software, it allowed me to boot normally into windows. But then I tried to install again ATI driver and the cycle started. ATI driver install>BSoD on windows bootup> restart and boot into safe> remove all driver>boot into normal window> ATI driver install> BSoD.......

So now I am confused as hell, is the laptop screen Dead? if yes, then why is the HDMI not working either?
Is it an inverter issue?is it GPU re balling? is it a ghost of my old laptop ?

I really need to use this laptop, since it has very important licesnced softwares installed.
I will be immensely grateful to anyone who can help me out in this regard or give me any sort of idea. 

Also since I am an engineer I am willing to open this up and figure this out.