[Q] i'm problem with my xperia s topic

Hello, yesterday i install un rom new it's [UB][KitKat][4.4.4]Carbon Rom but to restart in recovery mode the smartphone was caught. Later the smartphone no reply until after 5 minutes, when I tried to install the stock rom the pc no detect the smartphone ni using botton on + up volumen ni using botton down volumen. Someone would help me?

sorry for my nivel of inglish.