Driver's door keyhole fell inside door

What size engine ? Could have came with five different ones !
Engine Controls - 1.2L
Engine Controls - 1.4L DOHC
Engine Controls - 1.4L SOHC
Engine Controls - 1.5L
Engine Controls - 1.6L (L91)

Have you checked the wiring that runs from the driver door into the frame and inside the door ? At times, the wiring over time breaks and stops the proper working of accessories and other components.
May also want to check your fuses and if good, check power from fuse panel to the other door switches to make sure you don't have a wiring problem.

Usually the shops don't actually fix a thing

They just put it back together & send you
on your way, without installing new parts
& doing the job correctly

Open up the fuse panel (open the drivers door to access). There is a fuse marked RADIO. Replace it. There are replacement fuses in the engine block fuse compartment.

Please see my tip at http://www.fixya.com/cars/r6065762-removing_door_panels and let me know if you have questions.

This is a generic procedure--I do not have the exact procedure for your car.

you can access them from under the package tray inside your trunk compartment

The same thing happened to my 2006 Aveo. Once you do the above find the lock and the screw that holds it in (they will both be in the bottom of the door). Put the lock back in place, put blue Loctite on the screw and screw it back in place and this problem will not repeat itself.

I just fixed my 2005 Aveo door lock. like so many it fell in to the inside and was hitting the window rod and locking. The fix was not to bad, I removed the 3 screws on the bottom door panel, one in the center of door pull and the one behind the arm pull. Then the door panel can be pulled out and up to unhook it from the window seam. I did not un hook the linkage from the door handel, I just slid panel down and let it hang to the side. Then peel the water film back so you can reach in and get the key lock back in to the hole. I found that my lock had rotated down and needed to be rotated back so the screw arm lines back up with the screw hole. I found a replacement screw in my screw tin that worked, tested it and it worked fine. Just revers the door panel removal proceduer making shur that the two hooks on back of the door handel cup is hooked into the two slots on door frame ot it will stick out and you will not be able to put the one screw in, dun deal.

Hope this helps

Buy a Toyota?

take door trim off inside and find lock and big 'c' spring clip in bottom of door inside to reinstall ..the linkage may need replaced rather than just resnapping into place so you dont have to go back in there again..god luck