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New owner here. This forum is full of great info for new guys!
Just bought an '02 LS430. Low mileage, one owner.....love the car. Still had the original nav disc so I bought the newest one from local dealership. "I" scratched it while trying to install it. Bought another one and installed this morning (very careful as not to scratch it) and got the "cannot read disc" thing. Went back to dealer to have them check it out and they pulled out the disc. It was scratched in a circular motion. Obviously the reader did it. BUT, the original disc goes in, no scratches and works great. What's up? Do I need to replace the reader? Already spent almost 400.00 and still no updated navigation......frustrating. Haven't tried disconnecting power. Will try a cleaning disc. Any suggestions?