I would be looking at fixing the touchscreen. With a narrow vertical strip being unresponsive. I would suspect something at the top or bottom of the affected area of the screen is blocking an IR beam - except that the 6" Aura uses a different (capacitance) touchscreen technology. With your Aura, David's long shot "poor connection" idea, is the only remaining action that the user might be able to use to effect a repair.
Luck;
Ken
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