thanks for asking and I apologize to everyone, I thought I had posted the following response: "finally got it, problem was that the computer was adding a number to the downloaded file, I still had the original 1.11 upgrade file in my downloads. deleted all previous firmware upgrades from computer and downloaded new one and it worked fine. ...so relieved I didn't end up with an expensive brick...but then a ruined k3 might have necessitated being replaced by a k1
thanks again for your suggestions and help."