Never turn off the radio or unplug the cable while the "Writing" process is active. This can corrupt the radio's firmware. Conclusion
Usually a COM port mismatch. Check Device Manager to see if the port number changed. zastone d9000 programming software
The software is often identical to that used for the BTECH UV-2501+220 and QYT KT-8900D , as many of these radios share a common hardware platform. Never turn off the radio or unplug the
The Zastone D9000 is a versatile piece of kit that truly shines once it is tailored to your local area. By mastering the programming software, you move from being a casual listener to a power user who can navigate the bands with ease. zastone d9000 programming software