Recently purchased this radio as NOS and have programmed as a GMRS repeater with version 5.5 (2016) of Vertex Clone Editor. I can read and write the code plug and the last programming date is current. After initial read of the code plug it was originally programmed in 2006 when manufactured. Although the repeater appears to operate as it should, I also wanted to update the firmware and downloaded several versions from the Vertex Group and installed the most recent version on my laptop. No errors running the firmware executable file and I see the new firmware files in the clone editor folder. When attempting to run update using clone editor, the software shows no new files to load--no other errors. Can anyone tell me what I'm missing and/or have done wrong? Wondering if the firmware files I downloaded are too new (have see that when updating Motorolas using CPS/RSS). I'm not an expert here and would greatly appreciate guidance from any of you who are more knowledgeable than me. I could probably use the repeater as-is with the 2006 firmware, but wonder why I'm havng issues. Thank you very much!