Thank you for the reply.
I did find my problem and got successfully updated. Seems I did not turn the device off/ disconnect the power before connecting the usb….. Once I figured that out, it worked correctly. amazing;-)
The mac solution may not be so simple. Searching the web came up with a bit that one would need to change user privileges together a non certified program to run. I haven’t sorted it all out so I jay be misspeaking there