Been there, done it....
While loading the a CSV file, it stalled at 39% and stayed that way for 20 minutes or so. Decided to turn it off and Start over again.
Wrong !!! Came
up with the Display showing as your did. @#$%&%@ damned !! No matter what I did ,the ASC-1 wouldn't move off that screen. I dug out my old IBM Laptop ( with Serial connection ) and proceeded to try making a connection and going thru the procedure again ( using a older version of a CSV file I had ). After two try's......
SUCCESS !!!
.