During my spring update procedure, I ran into all manner of problems. I complained a lot in my blog post of May 29th. Therefore, I should take the time to admit that Hyundai has made a vast improvement to the download process.
Today, I was able to get the entire download at an average speed of 5 Mbps from their servers. That still meant it was much closer to an hour then their app's rather optimistic guesses.
The Navigation Updater now allows downloading to a location other than the SD card. I had set the computer's hard disk as default. When I started the app today, it displayed the SD card, so I thought it'd cache to the drive first, and copy to the card upon completion. Instead, it wrote directly to the SD card. I worried about whether there would be room, but I guess it either initially reformatted the card, or found enough space.
Anyway, the second part of the process, in the car, was still slow even though not as long as the last time. There were probably fewer updates today. Still having to spend 15 minutes sitting inside with the ignition on, seemed tedious. It's a shame BlueLink is too feeble to update directly over the air in a seamless process.