OK I have a 2008 BMW 528i and I had the same problem were the drivers side door would not open either inside or outside. what I did was take the door lock plug off and pulled the top of the panel which is held on by clips off I had about 1 inch clearance to see inside the door. Thank God I knew where the interior door handle mechanism cable connected to the metal clip that opens the door. You can see that by popping off the panel on the passenger door to see how it all connects. Make sure you disconnect the negative terminal on the battery before you do this or you may screw up your airbag. I took a metal BBQ skewer bout 20 inches long and bent the tip(1/4 inch long) 90 degrees. The clip is just below the end of the door lock where there is a screw head right below so you have to go past the screw head and there is a cavity that holds the metal clip, turn the skewer 90 degrees to get into the cavity and push down. This opened the door for me but it took about 30 tries to get it to catch the clip. Good luck!