If the actuator is stuck in double lock mode and the child safety lock is engaged you'll have a very difficult time getting the door open.

Try to use the emergency exit process where you hold the central lock button down while pulling the inside lever twice.

If the inside lever dry fires either the actuator is double locked the kid safety is engaged or as mentioned above the cable is not held properly.

On my actuator repair thread I show exactly where the lever is for the double lock but you probably can't get to it with the plastic cover on (though it's very thin plastic you can cut with utility knife)

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)