Here is a link where you can download the latest firmware for both Version 1.0 TK380/TK880 radios (data plate will not show a version number) and Version 2.0 radios (data plate will actually show Version 2.0). The files are .zip files towards the bottom when you scroll down. The file that starts with “Firmware E4B3” is for Version 1.0 radios (E4B3 is the checksum for the .hex file) and the file that starts with “Firmware_V208_0ADE” is for Version 2.0 radios (0ADE is the checksum for that .hex file).

https://groups.io/g/KenwoodRSS/topic/...