Konica revio kd500z jammed lenses

Hi

I have a konica revio kd500z , which had sand ingress to the lenses, with a
result that the lenses would not retract when switched off.
The owner then "helped" the lenses home, and now when switched on , the
error message "system error S0055" displays.

Does anybody know if this fault is a stock problem ?

A camara shop told her that it was not worth repair, and sold her a new
camera, but as I used to be in the TV repair business, I have seen how some
shops operate.

Cheers

John