You dont need to press the transmit (ptt) key to upload a code plug, you only need to press these buttons when you update the firmware,,,, firmware and code plug are different, the code plug is the list of channels to write to the radio, firmware is to update the radios firmware that changes the way the hardware in the radio works, the firmware will end in .bin the code plug for the DM32 end in .data, you only need to load the .data file in the programming software (CPS), different Baofeng radios have different extensions, some are .dat, .rdt, accps and many others, again, you only need to put the .data file in the DM32 software.
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Just remember, chirp does not work with any Digital DMR radio, not even on the analogue section.
