I got an Apple IpHone 3GS version 3.1.2. When i Switched off it .it went into Restore Mode then i Jailbreaked it using blackra1n , After the Jailbreak Process My phone didn't Rebooted and .from that time its notresponding only black screen is observed ...lthough when i Connect it to PC i Hear a beep Sound.and a Message "iPhone Connected in restore Mode". i Pressed the Standby and Home Button For 30-40 secnds also But no Results. Whenever i try to restore through itunes it gives error code ::""3194"" Any TechnIques???or softwares to make it on ..No apple logo appears only black Screen like a DEAD phone.