Hi All, im in desperate need of your help!

I ran some updates via the Sony website on my VGC-LT2S. I double checked the model number of my All-in-one and ensured they where the correct updates from the website.

Whilst running the BIOS update, my computer crashed and now nothing happens?? power is getting to the computer and the hard drive appears to be working fine as ive managed to to rebuild windows 7 on it with a view to rebuilding a new hard drive thinking this was my issue, but still a completely black screen, not even a bios window.

Any Advice??