Hi Bill,
Tried all the above but still no joy.
The fact that the upload disks showed up on the screen would indicate to me that the disk drive etc is operating normally.
I would guess that all the data in the keyboard has been wiped off and would need to be re-loaded and also the micro chips have been wiped and need to be replaced - if any are still available....
As I say, I'm only guessing. Ho Hum....
Peter