Always check your radio’s firmware version (power on holding the PTT button and lower side button). The KPG111D version must be equal to or newer than the radio’s firmware. If your radio has firmware 4.20, you need KPG111D v1.61 or higher.
If you’re having trouble with read/write errors, try: kenwood kpg111d programming software verified
To ensure a successful programming experience, keep these verified tips in mind: Always check your radio’s firmware version (power on