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With my VPCEE2E1E laptop, when it's plugged in to charge it will only charge when I move the plug to a certain position, then when I move it out of the position it will stop charging. Is it something wrong with the actual plug or something inside the laptop?
It is for certain that your AC Adapter socket on your Vaio is already failing, that is why whenever you connect your charger, you have to change it in position just for it to work. I suggest for you to have a technician check it for you.