Download Error on 2020 Advance

The Multimedia Owner’s Manual (PDF) for the 11.6-inch system in your car doesn’t mention the message in your photo, but its authors concede (page 285) that “The actual messages displayed on screen may differ from the messages in this manual.” The Navigation System Owner’s Manual (PDF) for the 7-inch system found on the LE model, however, has a brief discussion on page 157:

● “Download error, some Entune App Suite functions may not work as expected. Please reinitiate the download process.”

The Toyota Entune App Suite Connect application cannot be connected to Bluetooth® SPP.

Refer to http://www.toyota.com/Entune/ in the United States, and http://www.toyota.ca/entune in Canada, to confirm if the phone is Bluetooth® SPP compatible or not, and then activate the Toyota Entune App Suite Connect application.​

Please ensure your Toyota Entune App Suite Connect application is running and logged in on your phone while vehicle is not moving.​

SPP refers to the serial port profile for Bluetooth, which I assume used to set up a connection between the car and the Entune app on a phone. This FAQ page about the Prius Prime Apps might help; if you’ve already tried what it recommends, I’m not sure what to suggest, besides the usual sage advice to defrost your refrigerator.