I recently purchased a used Baofeng DM-1702 radio and am trying to program it but the Baofeng's MD software (version 1.00.66) is not 'seeing' the radio. The radio is connected to the PC via a USB cable. It identifies itself to the operating system as an "STM32 virtual COM port in FS mode". Windows 7 automatically downloads a driver and the port comes up in Windows Device Manager as a USB Printer! The MD software just sits there forever trying to read the radio and nothing happens. No timeout, no errors, no data read, just nothing. I have tried on both Win7 and Win10, taking care to start the MD software first and then plugging in and turning on the radio as per instructions. I also tried different USB cables. The previous owner said they had no trouble with programming it. I was given to understand that programming can be done via USB but if I have to use the two jacks (Kenwood interface) then I will have to purchase a suitable cable. For some reason the ones without the Prolific chip required for this radio are more expensive than the ones for e.g. UV-5R, GT-3TP etc with come with the UART chip. BTW, the Baofeng software has no option to select a COM port and none is shown as present and available in Windows. Usually that would indicate a missing driver, but the manual does say it should work without drivers, presumably relying on Windows update to install the correct driver. It might help if someone could tell me how the radio should identify itself as to the OS? The GT3-TP for example comes up as a "QinHeng Electronics HL-340".