Iphone 4 ios 7 died

[peter23]

I have an iphone 4 with ios 7.0.2 and tried to jailbreak it with evasion7 1.0.2. Everything was going normal but whet it said finished the iphone restarted and it doesn't start up now. I even can't get it in DFU mode. And my pc doesn't recognize it so.... Can you help me! Please!