[Q] LG P500 bricked to the limit

Hello,

I bricked my LG optimus one P500, I was updating my phone and suddenly it got bricked.
I tried all possible options to switch it on. used the volume +home key option. Nothing is working for me. Its just dead.
What should i do?
Also that my phone was already rooted. Is that the problem?
What should i do in that case?