Before diving into the pin numbers, let’s clarify the "top" reference. The QYT KT8900 uses an connector for programming, identical to an Ethernet plug. However, unlike network cables, the pinout is not T568A or T568B.
Here is the typical logic flow for the connector found on the QYT KT-8900 accessory port: qyt kt8900 programming cable pinout top
Solder a wire from the of the plug to the TXD (Transmit) pin on the board. ⚠️ Common Pitfalls and Troubleshooting Before diving into the pin numbers, let’s clarify
If you have the pinout correct (or bought a supposedly compatible cable) and the radio is still refusing to write or read, check these three critical points: Before diving into the pin numbers