Customer said she was cleaning it and pressed multiple button and now it won’t work. Went along and found the child lock activated. Simple, or so I thought. Found out how to de-activate in the instruction manual. Did that, but now it’s in demo mode. In the fault -finding it tells you how to get out of demo mode, but it doesn’t work! It says to press all three keys at the same time. Tried all manner of combinations but still no joy.
Any ideas?