It would be possible, that the connector or one of the connections could become "loose". Your best bet will be to take the computer to a repair shop, I have used MMD with good success. If you are lucky, you will have a loose/broken solder joint or a dirty connector. If you are not, you port may not be repairable.
Hope this helps.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV.
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