Hi Dennis,

On Wed, Aug 18, 2021 at 11:03 AM Dennis Mosley <mdenmos6@gmail.com> wrote:
>
> I downloaded CHIRP.  Plugged my computer cable to a USB port on my computer and got an Error 3 message saying this port is not recognized.  No driver.
> I use this port all the time. I purchased the cable from Amazon as being the one to buy for my Btech 50+1 radio.
> Help would be appreciated.--Your pal. That sweet fella you love, Mr. Dos XX's himself, Dennis, Den, Denny, Dad, Pops, Grandpa, Uncle, Cousin, Mr. Mosley, Moe, Comrade, etc.

You are most likely choosing the wrong port. Which port does Device Manager show as the port assigned to your programming cable? That is the one you must use.

Jim KC9HI