I would like to know how the charging port operates. When I press the screen or the cable, I hear a sound - to me the sound is an electric solenoid sound. I know there is a magnet involved in the door, so I assumed the door opened by a solenoid moving out to open the door. Did some testing tonight and that does not appear to be correct. Another option I thought of is the door is held shut by an electromagnet and the opening happens when an electro-magnet is de-energised. Occasionally I hear the sound, but the port does not open - this is the observation that created this question. Finally, I am about to leave on a road trip out of Atlanta - and I will be very low on charge when I get to the first SuperCharger 247 miles from home. So I really would like to have any tricks on port opening if it gets stubborn. Can it be pulled open with say a bent paper clip? Pried open with something like a small flat bladed screw driver?