It is in the device list for the miniprog -03 . Have you updated the software to the latest versions.
It can be problem of the custom PCB if you are using one. Did you check that ? What are the differences between your previous hardware setup and current setup ?
Hi VSRS, thanks for the reply, custom PCB is good, I found the problem recently. The difference between my previous hardware was in chipsets. The new one has had the fully clear flash memory. When I write the new chip using C# example from Miniprog 3 examples, the new device became in visual state from all programs. Thanks anyway!