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I have new hardware with exactly the same problem. The only thing I can see which I don't have is the option to delete the driver, all I can do is to uninstall it from the menu presented when I right-click on the entry under the Device Manager USB serial bus controllers. I have looked through the li...

Andrew, I think there's a hardware problem because in the drop-down list for USB devices I get "Unknown USB Device (Device Descriptor Request Failed)" I think it's time to contact the supplier of my K150 programmer and ask for a replacement. I appreciate all the advice you have given me over this is...

Andrew, No luck, I'm afraid, following your instructions to the letter. I just get "unknown USB device" in the device listing, it doesn't even say incorrect driver, although it does give the option to delete it, which I do. Win 10 device listing seems to be dumbed down compared with earlier OS so yo...

Andrew,

Many thanks, the software for programming is downloaded OK but the driver software for the PL2303 seems to be rather complex to get loaded and running. There is a youtube video but without a dual screen PC it's tricky to get through it.
Any advice would be most welcome.

Andy.

I have logged on to this forum for the first time, can someone point me to the link to download the K150 software.

Many thanks.

Andy.