Jailbroken iPhone 4s with iOS 6.1 not connecting to any computer

[laabbigbee]

I have a jailbroken iPhone 4s running iOS 6.1. It worked great for a few days, but now I cannot get it to connect to any computer. It charges just fine when plugged into a computer. I have tried putting it into DFU mode, but the computer still does not recognize it. Is there anything I can do?

 

[Carlanga]

change the cable?

 

[laabbigbee]

I have tried different cables and all the cables work on other iphones.