Hi , a friend gived to me his phone to install a custom ROM , i made that before with my SG sII , provlem is when i installed a CWM , DPI was changed (i guess i installed cwm from other phone ) and now all works fine but display is off , is working but is off , i can acces only Download mode , here , other problem "Usb not recognized" is plfrom phone cuz i tried with other usb , port or PC ! WHO can i reinstall firmware or solve this problem with usb or DPI ! PLEASE HELP ! In 1-2 days i need to give him phone back