Bricked phone! PLEASE Help.

[Malcolmmm_]

I got a LG Optimus S about 2 weeks ago. I used to have a HTC Hero, which i rooted so I know my way around computers. I rooted my Optimus, but felt like my phone was receiving text as they came. So I tried to unroot using http://forum.androidcentral.com/lg-...45403-how-unroot-your-phone-return-stock.html , but my phone doesnt work. It boots up, i hear the sound, it vibrates, but the screen is black. Everything else works though. PLEASE HELP !

 

[bblaze]

Try this thread out.

 

[Malcolmmm_]

Try this thread out.

I got confused because there a bunch of ???? on the phone upgrade window.