: If your PC shows a "Code 10" error in Device Manager, you likely have a cable with a counterfeit Prolific chip. Reverting to an older driver (version 3.2.0.0 from 2008) often fixes this.
If you want to build your own cable rather than purchasing a QYT USB cable , you will need a USB-to-TTL UART module. qyt kt8900 programming cable pinout top
On most versions of the QYT KT-8900, the programming jack is a . Depending on your specific sub-model (KT-8900, KT-8900D, or KT-8900R), the location may vary: : If your PC shows a "Code 10"
: Ensure the radio is turned on and the correct COM port is selected in your software settings. Avoid using USB hubs. On most versions of the QYT KT-8900, the
Connect the pin of the module to the Sleeve of a 3.5mm stereo plug.
The most common location is on the front face of the radio, often hidden near the top-left corner. It is frequently all-black and blends in with the chassis.
Connect the pin of the module to the Tip (RX) of the plug.
