iPhone 8+ lightning port disconnects with slightest movement

i have iphone 8+ (64gb) , whenever charging phone or listening music, slightest movement disconnect cable phone, not physically iphone acts being disconnected. problem happens both headphones , lightning cable came phone. tried different cable , did same thing. problem started , persisted since day 1 of having phone. lightning cable disconnect reconnect. headphones disconnect , still recognize headphones , other times have disconnect headphones , plug them in phone recognize them.

went apple store , associate tried cable phone , worked fine. replaced original phone new phone, problem persists new phone. unsure if software issue or hardware issue. can't think hardware issue since phone replaced (unless have awful luck). haven't restored phone previous up, i've transferred music onto phone through itunes. read before people similar issues (not iphone 8+) recommended stop automatic ups icloud, tried , have seen no improvement.

please suggestions, closest apple store 2+ hours away :-(

 

could lightning accessories?

 

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