same to me, came to the point of removal the card after blank...
But finially got the door open reading some other forums and hints
Take a rubber hammer, like one you use to pose the tiles on the floor.
2 bangs on the door, inner side at lock position, AND same time press the unlock key on the remote control.
Suddenly you hear a click... done
The problem seems to be the microswitch inside the lock
And after that never close the door again, next time might fail!