iPhone 4s keeps disconnecting/connecting at the slightest touch?

when charge phone usb charger (with laptop, not wall socket), keeps disconnecting @ slightest touch , reconnecting again. it's annoying don't know problem is! loose connection in dock or something?

got phone maybe around week ago, , problem started yesterday.
seems problem?

edit: if helps, itunes gave me error code when phone many times in row while trying sync it.: 0xe8000001

 

try alternative cable first see if wire inside cracked or loose.

if issue not present when use wall charger dock connector must ok.

maybe usb on computer !

 

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