Im getting the following error too, trying to use logo editor 1.4, and the upload.exe command line tool.
found empeg unit: entering program mode
manufacturer=0089, product=88c1
waiting for prompt
starting erase [Failed to get echo-back on erase command.
Error: erasepage(10000) got code 1
Press the Enter key to continue.
reading similar posts this hasn't been resolved to a specific issue.
Tried on 2 different systems, running 98 and 95.
Will have to try on my laptop now,
hope it works, running out of systems :)
Jaidev