Pictures can help but until here is this ---->
Check your cable for bends etc try to find where the cable might be broken/ripped/torn on the inside then use an exacto knife and strip the wire around the bent point. Check if it is ripped if it is use some solder and solder the wires, if you don't or can't solder twist the wires together and tape the exposed wires up. This may not be the problem. I should recommend that you should also check both ends of the cable to see if the pins are offset and also make sure its not the ports messed up.