Cause
The ECU does not respond or responds with a delay to the encryption command from the diagnostic tool (diagnostic app).
Corrective Action
Verify that the diagnostic tool (diagnostic app) is updated to the latest version.
Check for aftermarket equipment. Remove any aftermarket equipment found, and then retry the upgrade.
The vehicle ECU may be faulty. Retry the upgrade at least 3 times.
Support
Contact the Customer Support Center at 1588-3665 for assistance.
Be sure to provide the vehicle identification number (VIN) to the support representative.
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