I am attempting to uplaod the latest formware to my 861 (V4)

When I load the firmware upload software and I request to identify the hardware I receive a positive response.

However, when I begin the upload I am asked to turn 861 off then then on.. I do this but unfortunately upload will not proceed

I have tried this a number of times with no success

I have not participated in forum for a couple of years so excuseme if this question has previously been answered

Thanks