Using the DJI Assistant to update the smart controller to th latest version, the update stops at 99%.  I have retried 5 time.  What else can I do?
An Error log is downloaded to someware but I have no idea where it went.
Correction to the above.

The update worked on the 7th try.  The following may have helped.
When the controller asks, leave it in "Charge Mode".  DO NOT select "Transfer mode".
Use an original DJI cable.  Other cables may or may not work. The Assistant won't tell you.
I also fully charged the Smart Controller and noted that it had over 300 GB memory.
The update took about 1/2 hour.
The YouTube search about and hour.

Hi, TomAir9. Thank you for reaching out and we're sorry to read that you have to do it 7 times to successfully complete the update of your DJI Smart Controller. Please know that we appreciate you giving the information that fixed the problem. Hopefully, this will help other DJI Pilots. Thank you for your valued support.