This bolt holds the lock cylinder and handle in place.
Toyota hiace door handle removal.
Slide the door handle toward the rear of the vehicle and pull it out.
Take out the screws from the back of the track cover.
You should not need to completely remove it.
Be careful not to drop the bolt but if you do you can retrieve it using a magnetic tool.
Detach the rubber access plug on the edge of the door and loosen the bolt behind the plug using a torx wrench.
There are screws at the door handle at the forward portion with covers when the door is open and the back edge small covers.