: Kirisun uses different versions (e.g., KSP-10, KSP-12, KSP-21) for different models.
This happens when you try to write a codeplug (configuration file) meant for a different hardware model. Check your radio's backplate sticker for the precise model number (e.g., PT558 vs. DP405) and make sure you are using the corresponding software application. Grayed Out Options kirisun radio programming software
Check your COM port assignment in Windows Device Manager. Ensure the port number matches the one selected in the Kirisun software. If a yellow exclamation mark appears in Device Manager, reinstall your USB cable driver. "Model Mismatch" Error : Kirisun uses different versions (e