Ok so I am assuming that the cable has become detached from the inner door handle, so the standard one pull to unlock and then another to open does not work.

Try pulling up the black lock knob on the top with tweezers and pulling on the outer door handle at the same time.

If none of these work because they are disconnected then pull the window down and go fishing with a piece of hooked wire to pull the lever that is connected to the outside handle.

Jack