Isn't this just the same as this thread that was posted on Nov 10, 2019? The attached link has worked for thousands of Nav units, and unlike what the Corvette Mechanic states, GM instructions in this supposed new update didn't even specify that it was CD-R that had to be used to copy the file. The Corvette mechanic was guessing that's what it was...lol

 
Isn't this just the same as this thread that was posted on Nov 10, 2019? The attached link has worked for thousands of Nav units, and unlike what the Corvette Mechanic states, GM instructions in this supposed new update didn't even specify that it was CD-R that had to be used to copy the file. The Corvette mechanic was guessing that's what it was...lol

It was updated. Apparently the original updated did not work for everyone.
He is one of the top Corvette mechanics in the US. Met him at NCM last year.
Lots of great information there.
 
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