[iPhone] My iPhone 4 iOS6.1 Jailbreak can't connect to PC

Dear All,

Please help me.

Suddenly my iPhone can't connect to PC. (Cannot connect to iTunes, Charging, etc)
I've tried to bypass MobileSubstrate Boot up iPhone, but also doesn't work.

I've check this is not PC problem.

The only way that I can connect/charging by PC. When I use steps below;

1. OFF my iPhone
2. Connect USB from PC to iPhone.
3. iPhone will automatically Boot Up.
4. PC can recognize my iPhone.

Note: When I use the above steps, All jailbreak app can't be used.

Thanks

Source: http://forums.macrumors.com/showthread.php?t=1543744&goto=newpost

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